I have to tell you, when I first thought about a “tuna quiche” for breakfast, I was a little skeptical. Tuna for breakfast? It sounded more like a lunch thing. But let me assure you, this Crustless Tuna Breakfast Quiche has become an absolute game-changer in our household. The first time I made it, my family was quiet – that good kind of quiet where everyone is just too busy enjoying their food to talk. My son, who usually turns his nose up at anything “fishy” before noon, asked for seconds! It’s wonderfully savory, packed with protein, and because it’s crustless, it feels lighter yet incredibly satisfying. The subtle brininess of the tuna, combined with creamy eggs, melted cheese, and whatever fresh veggies I have on hand, creates a symphony of flavors that just works. It’s become our go-to for a hearty weekend brunch, and I often make a big one on Sunday to have easy, healthy breakfast slices ready for the busy week ahead. It reheats beautifully and keeps us full and energized until lunchtime. Honestly, if you’re looking for a new, exciting, and surprisingly simple breakfast or brunch star, you have to try this.
Why This Crustless Tuna Breakfast Quiche Will Become Your Go-To
In the world of breakfast and brunch, it’s easy to fall into a rut. Cereal, toast, oatmeal – they’re all fine, but sometimes you crave something more substantial, more flavorful, and frankly, more exciting. Enter the Crustless Tuna Breakfast Quiche. This isn’t just another egg dish; it’s a powerhouse of nutrition, a champion of convenience, and a surprisingly elegant meal that’s perfect for any occasion.
One of the primary appeals of this recipe is its high protein content. Tuna is an excellent source of lean protein, and when combined with eggs, you’re looking at a breakfast that will keep you feeling full and satisfied for hours. This makes it an ideal choice for those busy mornings when you don’t have time for mid-morning snacks, or for anyone looking to increase their protein intake without relying on heavier meats.
Beyond its protein punch, this quiche is incredibly versatile. The ingredient list provides a fantastic base, but feel free to get creative! Don’t have spinach? Try kale or Swiss chard. Want a different cheese? Go for Gruyère, Monterey Jack, or even a spicy pepper jack. The beauty of a quiche is its adaptability to your pantry and preferences.
Moreover, the “crustless” aspect is a significant win for several reasons. Firstly, it dramatically reduces the carbohydrate count, making it a fantastic option for those following low-carb or keto diets. Secondly, it’s naturally gluten-free, opening it up to individuals with gluten sensitivities or celiac disease (always ensure your other ingredients, like tuna, are certified gluten-free if necessary). And thirdly, let’s be honest, making a pastry crust can be time-consuming and a bit finicky. By going crustless, you save time and effort without sacrificing flavor or texture. The edges of the quiche still get delightfully golden and slightly crisp, offering a satisfying contrast to the creamy interior.
This quiche is also a fantastic meal prep solution. Bake it on a Sunday, slice it into individual portions, and you have a ready-to-go breakfast for several days. It reheats beautifully in the microwave, oven, or even an air fryer, maintaining its delicious taste and texture. This convenience factor cannot be overstated for busy individuals and families.
Finally, let’s talk about taste. The combination of flaky tuna, savory eggs, melted cheese, and aromatic vegetables creates a truly delightful flavor profile. It’s hearty without being heavy, and sophisticated enough for a special brunch yet simple enough for a weekday morning. It’s a recipe that proves healthy eating doesn’t have to be boring or complicated.
Understanding the Magic: What Makes a Quiche a Quiche (and Why Crustless is King!)
Before we dive into the specifics of our tuna-centric creation, let’s briefly explore what defines a quiche. At its core, a quiche is a savory tart consisting of a pastry crust filled with a custard made from eggs, milk or cream, and various other ingredients like cheese, meat, seafood, or vegetables. The most famous variant is undoubtedly Quiche Lorraine, which traditionally includes lardons or bacon.
The magic of a quiche lies in its rich, creamy custard. The eggs provide structure and richness, while the dairy component (milk, cream, or a combination) contributes to its smooth, tender texture. When baked, this custard sets into a delicate, sliceable delight.
So, why go crustless? While a traditional buttery, flaky crust is undeniably delicious, opting for a crustless version offers several compelling advantages, particularly for a breakfast quiche:
- Healthier Profile: Eliminating the crust significantly cuts down on calories, saturated fat, and refined carbohydrates. This makes the quiche lighter and more aligned with health-conscious eating habits.
- Gluten-Free & Low-Carb: As mentioned earlier, a crustless quiche is inherently gluten-free (assuming other ingredients are) and much lower in carbohydrates, catering to specific dietary needs and preferences.
- Simplicity and Speed: Making pastry from scratch, or even dealing with store-bought crusts, adds extra steps and time to the preparation process. A crustless quiche is quicker to assemble, getting you from ingredients to oven in record time.
- Focus on the Filling: Without a crust, the flavors of the filling – the tuna, cheese, eggs, and vegetables – truly take center stage. You get a more concentrated taste of the star ingredients.
- Less Fuss: No worries about soggy bottoms, shrinking crusts, or blind baking. It’s a more straightforward and forgiving cooking process.
The “crustless” approach essentially transforms the dish into a baked egg custard or a frittata-style bake, but it retains the creamy, satisfying heart of a traditional quiche. It’s all the good stuff, with less of the fuss and fewer of the less-healthy components. For a breakfast or brunch dish that needs to be both delicious and relatively easy, crustless truly is king.
Gather Your Treasures: Complete Crustless Tuna Breakfast Quiche Ingredients
Here’s what you’ll need to create this satisfying and flavorful breakfast:
- For the Quiche Base:
- Large Eggs: 6 (These are the backbone of your quiche, providing structure and richness.)
- Heavy Cream or Half-and-Half: 1/2 cup (For creaminess. You can use whole milk for a lighter version, but the texture will be less rich.)
- Grated Parmesan Cheese: 1/4 cup (Adds a salty, umami depth to the custard.)
- Salt: 1/2 teaspoon (or to taste)
- Freshly Ground Black Pepper: 1/4 teaspoon (or to taste)
- Dijon Mustard: 1 teaspoon (Optional, but adds a lovely tang and helps emulsify the custard.)
- Pinch of Nutmeg: (Optional, a classic addition to egg custards that enhances flavor.)
- For the Filling:
- Canned Tuna: 2 cans (5 oz / 142g each), packed in water or oil, thoroughly drained and flaked. (Draining is crucial to avoid a watery quiche!)
- Shredded Cheese: 1 cup (Cheddar, Swiss, Gruyère, Monterey Jack, or a blend work well. Choose a good melting cheese.)
- Olive Oil or Butter: 1 tablespoon (For sautéing vegetables.)
- Small Onion: 1, finely chopped (About 1/2 cup. Yellow or white onion works well.)
- Bell Pepper: 1/2 medium, any color, finely chopped (About 1/2 cup. Red, yellow, or orange add sweetness and color.)
- Fresh Spinach: 2 cups, packed (Or 1/2 cup frozen, thawed and squeezed very dry.)
- Fresh Parsley or Dill: 2 tablespoons, chopped (Or 1 teaspoon dried dill. Fresh herbs elevate the flavor significantly.)
- Garlic: 1-2 cloves, minced (Optional, for an extra flavor kick.)
- For the Pan:
- Butter or Cooking Spray: For greasing the pie dish.
A Note on Ingredients:
The beauty of this recipe lies in its flexibility. If you don’t have bell peppers, try chopped mushrooms, zucchini (squeezed of excess moisture), or asparagus. If you’re out of fresh parsley, chives or green onions make a great substitute. The key is to use good quality ingredients and ensure any watery vegetables are pre-cooked and drained to prevent a soggy quiche.
Crafting Your Culinary Masterpiece: Step-by-Step Instructions
Follow these simple steps to create a perfect Crustless Tuna Breakfast Quiche every time:
- Preheat and Prepare:
- Preheat your oven to 375°F (190°C).
- Generously grease a 9-inch pie dish or a similar-sized shallow baking dish with butter or cooking spray. This prevents sticking and helps the edges develop a nice golden color.
- Sauté the Aromatics (if using fresh):
- Heat the olive oil or butter in a medium skillet over medium heat.
- Add the chopped onion and bell pepper (and minced garlic, if using). Sauté for 5-7 minutes, or until the vegetables are softened and the onion is translucent. Stir occasionally to prevent burning.
- If using fresh spinach, add it to the skillet during the last minute or two of cooking, just until it wilts. Remove from heat.
- Crucial Step for Spinach: If you used fresh spinach that wilted down, or if you’re using thawed frozen spinach, transfer it to a clean kitchen towel or several layers of paper towels and squeeze out as much excess moisture as possible. This is vital to prevent a watery quiche. Set the sautéed vegetables aside.
- Prepare the Tuna:
- Open the cans of tuna and drain them very thoroughly. Press out any excess liquid using the lid of the can or a fork.
- Flake the drained tuna into a medium bowl.
- Combine the Filling Ingredients:
- To the bowl with the flaked tuna, add the sautéed vegetables (onion, bell pepper, squeezed spinach), the shredded cheese (reserve a small handful for topping, if desired), and the chopped fresh parsley or dill.
- Gently toss these ingredients together until well combined.
- Spread this mixture evenly into the bottom of your prepared pie dish.
- Make the Egg Custard:
- In a separate medium bowl, crack the 6 large eggs.
- Add the heavy cream (or half-and-half/milk), grated Parmesan cheese, salt, pepper, Dijon mustard (if using), and a pinch of nutmeg (if using).
- Whisk vigorously until the mixture is smooth, well-combined, and slightly frothy. Ensure the egg yolks and whites are fully incorporated.
- Assemble and Bake:
- Carefully pour the egg custard mixture evenly over the tuna and vegetable filling in the pie dish.
- If you reserved some shredded cheese, sprinkle it over the top.
- Place the pie dish on a baking sheet (this catches any potential spills and makes it easier to transfer in and out of the oven).
- Bake in the preheated oven for 30-40 minutes. The quiche is done when it’s puffed, golden brown on top, and the center is just set (a knife inserted near the center should come out mostly clean, with perhaps a little moist custard but no liquid egg). The edges should be pulling away slightly from the sides of the dish.
- Be careful not to overbake, as this can result in a rubbery texture.
- Rest and Serve:
- Once baked, remove the quiche from the oven and let it rest on a wire rack for at least 10-15 minutes before slicing and serving. This allows the custard to firm up completely, making it easier to cut neat slices and ensuring the flavors meld.
- Garnish with extra fresh herbs if desired.
This seemingly simple process yields a remarkably flavorful and satisfying dish. The resting period is just as important as the baking, so resist the urge to slice into it immediately!
Nutritional Snapshot: Understanding What You’re Eating
Understanding the nutritional profile of your meals can be incredibly helpful for planning and maintaining a balanced diet. Please note that these values are an estimate and can vary based on the specific brands of ingredients used, the type of dairy (milk vs. cream), the exact amount and type of cheese, and any variations you make to the recipe.
- Servings: This recipe typically yields 6 generous servings.
- Calories per serving (approximate): 280-350 calories.
Key Nutritional Highlights:
- Protein: This quiche is a protein powerhouse, primarily from the eggs and tuna. Expect around 20-25 grams of protein per serving, which is excellent for satiety and muscle maintenance.
- Fat: The fat content will largely depend on your choice of dairy (heavy cream vs. milk) and the type of cheese. Tuna packed in oil will also contribute more fat than tuna in water. Using leaner cheese and milk will reduce the fat content.
- Carbohydrates: Being crustless, this quiche is naturally low in carbohydrates, with most carbs coming from the vegetables (onion, bell pepper, spinach). Expect around 5-8 grams of net carbs per serving, making it suitable for low-carb and ketogenic diets.
- Vitamins and Minerals: This dish provides a good source of various vitamins and minerals, including:
- Selenium and Vitamin B12: From tuna and eggs.
- Vitamin D: From eggs and fortified dairy.
- Vitamin A and K: From spinach.
- Calcium: From cheese and dairy.
- Omega-3 Fatty Acids: Particularly if using tuna packed in oil or good quality canned tuna.
To get a more precise nutritional breakdown, you can use an online recipe nutrition calculator and input your specific ingredients and quantities. However, this general overview confirms that the Crustless Tuna Breakfast Quiche is a nutrient-dense, protein-rich, and relatively low-carbohydrate meal option.
Timing is Everything: Preparation and Cooking Time
Knowing how long a recipe takes from start to finish is crucial for planning your cooking. Here’s a breakdown of the time involved in making this Crustless Tuna Breakfast Quiche:
- Preparation Time: Approximately 20-25 minutes.
- This includes chopping vegetables, sautéing them, draining tuna, grating cheese (if not pre-grated), whisking the egg custard, and assembling the quiche.
- If you buy pre-chopped vegetables or use frozen (thawed and squeezed) spinach, you can reduce this time slightly.
- Cooking Time: Approximately 30-40 minutes.
- The exact baking time will depend on your oven’s accuracy and the depth of your baking dish. Start checking for doneness around the 30-minute mark.
- Resting Time: 10-15 minutes (essential!).
- This allows the quiche to set properly for easier slicing and improved texture.
- Total Time: Approximately 1 hour to 1 hour 20 minutes.
- From gathering your ingredients to being ready to serve, this quiche is relatively quick for such a satisfying and impressive dish.
This timing makes it feasible for a special weekday breakfast if you’re an early riser, perfect for a relaxed weekend brunch, or an excellent candidate for meal prepping on a Sunday afternoon to enjoy throughout the week.
Serving Suggestions: Elevate Your Quiche Experience
While this Crustless Tuna Breakfast Quiche is delicious on its own, a few thoughtful accompaniments and presentation touches can elevate it from a simple meal to a memorable culinary experience. Here are some ideas:
- Garnishes for Visual Appeal and Freshness:
- Fresh Herbs: A sprinkle of freshly chopped parsley, dill, chives, or green onion tops right before serving adds a pop of color and fresh flavor.
- Cherry Tomatoes: Halved or quartered cherry tomatoes arranged around the quiche or on individual slices.
- A Dollop of Dairy: A small dollop of sour cream, plain Greek yogurt, or crème fraîche can add a cool, creamy contrast.
- Lemon Wedges: A squeeze of fresh lemon juice over the tuna quiche brightens the flavors beautifully.
- Paprika or Red Pepper Flakes: A light dusting for color and a hint of warmth or spice.
- Complementary Side Dishes:
- Simple Green Salad: A light salad with a vinaigrette dressing provides a refreshing counterpoint to the richness of the quiche. Think mixed greens, cucumber, and a light lemon-herb vinaigrette.
- Fruit Salad: A colorful bowl of seasonal fresh fruit (berries, melon, grapes, citrus segments) adds sweetness and acidity.
- Avocado Slices: Creamy avocado, perhaps seasoned with a little salt, pepper, and lime juice.
- Toast Points or Artisan Bread: For those not strictly low-carb, whole-grain toast points or a slice of crusty artisan bread are perfect for soaking up any leftover creamy goodness.
- Roasted Asparagus or Green Beans: Simply roasted with olive oil, salt, and pepper.
- Hash Browns or Breakfast Potatoes: If you’re aiming for a heartier brunch.
- Perfect Pairings for Different Occasions:
- Weekday Breakfast: Serve a slice on its own or with a piece of fruit for a quick, energizing start.
- Weekend Brunch: Create a spread with the quiche as the centerpiece, accompanied by a fruit salad, a green salad, and perhaps some breakfast pastries or muffins for variety. Offer coffee, tea, and fresh juices.
- Light Lunch: Pair a slice with a cup of soup (like tomato or vegetable) and a small side salad.
- Potluck or Gathering: This quiche travels well (once cooled) and can be served warm or at room temperature, making it a great potluck contribution.
- Beverage Pairings:
- Coffee or Tea: Classic breakfast companions.
- Freshly Squeezed Orange Juice or Grapefruit Juice: Adds a bright, citrusy note.
- Mimosa or Bellini: For a festive brunch.
- Dry White Wine: If serving for lunch or a light supper, a crisp Sauvignon Blanc or Pinot Grigio would pair nicely.
Experiment with these suggestions to find your favorite way to enjoy this versatile and delicious quiche!
Additional Tips for Quiche Perfection: Elevate Your Bake
Achieving the perfect crustless quiche – creamy, flavorful, and beautifully set – is easy with these five expert tips:
- Master Moisture Management: This is the golden rule for any quiche, especially one with ingredients like tuna and spinach.
- Drain Tuna Thoroughly: Squeeze out every last bit of liquid. Waterlogged tuna is the primary culprit for a soggy quiche.
- Cook and Squeeze Vegetables: If using vegetables with high water content like spinach, zucchini, or mushrooms, always cook them first to release their moisture, then squeeze them very dry using paper towels or a clean kitchen towel before adding to the filling. Sautéing onions and peppers also helps reduce their moisture.
- Don’t Overbake – The Gentle Jiggle is Key: Overbaking is the quickest way to a rubbery, dry quiche.
- Start checking for doneness a few minutes before the recipe’s minimum recommended time. The quiche is ready when the edges are set and lightly golden, and the center is just set – it should still have a very slight jiggle when you gently nudge the pan. A knife inserted near the center should come out mostly clean, perhaps with a few moist crumbs, but no liquid egg. The residual heat will continue to cook it slightly as it rests.
- The Power of Resting: Resist the temptation to slice into your beautiful quiche straight from the oven.
- Allowing the quiche to rest for at least 10-15 minutes is crucial. This resting period allows the custard to fully set, making it much easier to slice cleanly. It also helps the flavors to meld and distribute more evenly. Hotter isn’t always better with quiche!
- Quality Cheese, Wisely Used: The cheese contributes significantly to both flavor and texture.
- Choose Good Melters: Cheddar, Swiss, Gruyère, Monterey Jack, Fontina are excellent choices.
- Grate Your Own: Pre-shredded cheeses often contain anti-caking agents that can affect meltability and texture. Grating your own cheese from a block usually yields better results.
- Don’t Overdo It: While cheese is delicious, too much can make the quiche greasy. Stick to the recommended amount or slightly adjust to your preference.
- Embrace Customization (Thoughtfully): While this recipe is fantastic as is, don’t be afraid to make it your own.
- Vary Veggies: Add sautéed mushrooms, roasted red peppers, steamed asparagus tips, or caramelized onions.
- Herb Variations: Try different fresh herbs like chives, tarragon (which pairs wonderfully with fish), or a pinch of smoked paprika for a different flavor profile.
- Spice it Up: A dash of hot sauce in the egg mixture or some finely chopped jalapeño sautéed with the onions can add a pleasant kick.
- Remember Balance: When customizing, consider how the new flavors will interact with the tuna and eggs. Aim for a harmonious blend rather than overwhelming the base ingredients.
By keeping these tips in mind, you’ll be well on your way to baking a consistently delicious and impressive Crustless Tuna Breakfast Quiche.
Your Quiche Questions Answered: FAQ
Here are answers to some frequently asked questions about making and enjoying this Crustless Tuna Breakfast Quiche:
- Q: Can I make this quiche ahead of time?
- A: Absolutely! This quiche is an excellent make-ahead dish. You can bake it completely, let it cool, then cover and refrigerate it for up to 3-4 days. Reheat individual slices in the microwave, oven, or air fryer until warmed through. You can also assemble the filling ingredients (tuna, cooked veggies, cheese) in the pie dish, cover, and refrigerate overnight. Prepare the egg custard just before baking the next day.
- Q: Can I freeze this Crustless Tuna Quiche?
- A: Yes, you can freeze it, though the texture of egg-based dishes can change slightly upon thawing – it might be a bit more watery or less smooth. To freeze, let the baked quiche cool completely. You can freeze it whole or in individual slices. Wrap it tightly in plastic wrap, then in aluminum foil, or place it in a freezer-safe container. Freeze for up to 2-3 months. Thaw overnight in the refrigerator before reheating. Reheat in a 325°F (160°C) oven until warmed through (about 15-20 minutes for slices, longer for a whole quiche) for the best texture.
- Q: My quiche came out watery. What did I do wrong?
- A: The most common culprits for a watery quiche are:
- Insufficiently Drained Tuna: Canned tuna holds a lot of liquid. You must drain it very thoroughly, pressing out as much moisture as possible.
- Excess Moisture from Vegetables: Vegetables like spinach, mushrooms, or zucchini release a lot of water. Always pre-cook them and squeeze out excess liquid before adding them to the filling. Even onions and bell peppers should be sautéed to reduce some moisture.
- Underbaking: If the quiche isn’t baked long enough, the egg custard won’t fully set, leading to a runny center.
- Too Much Liquid Dairy: While some dairy is essential for creaminess, using too much milk or cream in proportion to the eggs can result in a looser set. Stick to the recipe’s proportions.
- A: The most common culprits for a watery quiche are:
- Q: Is this recipe gluten-free and low-carb?
- A: Yes, this Crustless Tuna Breakfast Quiche is inherently gluten-free because it doesn’t use a traditional flour-based crust. Always double-check that your canned tuna and any other processed ingredients are certified gluten-free if you have celiac disease or severe gluten sensitivity. It is also low-carb, making it a great option for those following ketogenic or low-carbohydrate diets. The primary carbohydrates come from the vegetables, which are generally low in net carbs.
- Q: Can I use different types of fish instead of tuna?
- A: Certainly! While this recipe is designed for canned tuna, you could experiment with other cooked and flaked fish. Cooked salmon (canned or leftover baked/poached salmon, flaked) would be a delicious and rich alternative. Cooked cod or haddock, flaked, could also work. Ensure the fish is cooked and well-drained, just like the tuna. The flavor profile will change, so you might want to adjust herbs and seasonings accordingly (dill is particularly nice with salmon).

Crustless Tuna Breakfast Quiche Recipe
Ingredients
- For the Quiche Base:
- Large Eggs: 6 (These are the backbone of your quiche, providing structure and richness.)
- Heavy Cream or Half-and-Half: 1/2 cup (For creaminess. You can use whole milk for a lighter version, but the texture will be less rich.)
- Grated Parmesan Cheese: 1/4 cup (Adds a salty, umami depth to the custard.)
- Salt: 1/2 teaspoon (or to taste)
- Freshly Ground Black Pepper: 1/4 teaspoon (or to taste)
- Dijon Mustard: 1 teaspoon (Optional, but adds a lovely tang and helps emulsify the custard.)
- Pinch of Nutmeg: (Optional, a classic addition to egg custards that enhances flavor.)
- For the Filling:
- Canned Tuna: 2 cans (5 oz / 142g each), packed in water or oil, thoroughly drained and flaked. (Draining is crucial to avoid a watery quiche!)
- Shredded Cheese: 1 cup (Cheddar, Swiss, Gruyère, Monterey Jack, or a blend work well. Choose a good melting cheese.)
- Olive Oil or Butter: 1 tablespoon (For sautéing vegetables.)
- Small Onion: 1, finely chopped (About 1/2 cup. Yellow or white onion works well.)
- Bell Pepper: 1/2 medium, any color, finely chopped (About 1/2 cup. Red, yellow, or orange add sweetness and color.)
- Fresh Spinach: 2 cups, packed (Or 1/2 cup frozen, thawed and squeezed very dry.)
- Fresh Parsley or Dill: 2 tablespoons, chopped (Or 1 teaspoon dried dill. Fresh herbs elevate the flavor significantly.)
- Garlic: 1-2 cloves, minced (Optional, for an extra flavor kick.)
- For the Pan:
- Butter or Cooking Spray: For greasing the pie dish.
Instructions
- Preheat and Prepare:
- Preheat your oven to 375°F (190°C).
- Generously grease a 9-inch pie dish or a similar-sized shallow baking dish with butter or cooking spray. This prevents sticking and helps the edges develop a nice golden color.
- Sauté the Aromatics (if using fresh):
- Heat the olive oil or butter in a medium skillet over medium heat.
- Add the chopped onion and bell pepper (and minced garlic, if using). Sauté for 5-7 minutes, or until the vegetables are softened and the onion is translucent. Stir occasionally to prevent burning.
- If using fresh spinach, add it to the skillet during the last minute or two of cooking, just until it wilts. Remove from heat.
- Crucial Step for Spinach: If you used fresh spinach that wilted down, or if you’re using thawed frozen spinach, transfer it to a clean kitchen towel or several layers of paper towels and squeeze out as much excess moisture as possible. This is vital to prevent a watery quiche. Set the sautéed vegetables aside.
- Prepare the Tuna:
- Open the cans of tuna and drain them very thoroughly. Press out any excess liquid using the lid of the can or a fork.
- Flake the drained tuna into a medium bowl.
- Combine the Filling Ingredients:
- To the bowl with the flaked tuna, add the sautéed vegetables (onion, bell pepper, squeezed spinach), the shredded cheese (reserve a small handful for topping, if desired), and the chopped fresh parsley or dill.
- Gently toss these ingredients together until well combined.
- Spread this mixture evenly into the bottom of your prepared pie dish.
- Make the Egg Custard:
- In a separate medium bowl, crack the 6 large eggs.
- Add the heavy cream (or half-and-half/milk), grated Parmesan cheese, salt, pepper, Dijon mustard (if using), and a pinch of nutmeg (if using).
- Whisk vigorously until the mixture is smooth, well-combined, and slightly frothy. Ensure the egg yolks and whites are fully incorporated.
- Assemble and Bake:
- Carefully pour the egg custard mixture evenly over the tuna and vegetable filling in the pie dish.
- If you reserved some shredded cheese, sprinkle it over the top.
- Place the pie dish on a baking sheet (this catches any potential spills and makes it easier to transfer in and out of the oven).
- Bake in the preheated oven for 30-40 minutes. The quiche is done when it’s puffed, golden brown on top, and the center is just set (a knife inserted near the center should come out mostly clean, with perhaps a little moist custard but no liquid egg). The edges should be pulling away slightly from the sides of the dish.
- Be careful not to overbake, as this can result in a rubbery texture.
- Rest and Serve:
- Once baked, remove the quiche from the oven and let it rest on a wire rack for at least 10-15 minutes before slicing and serving. This allows the custard to firm up completely, making it easier to cut neat slices and ensuring the flavors meld.
- Garnish with extra fresh herbs if desired.
Nutrition
- Serving Size: One Normal Portion
- Calories: 280-350