Crab-Spinach Egg Casserole Recipe

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For years, weekend brunches at our house were a predictable affair. Pancakes, waffles, maybe some scrambled eggs – pleasant, but frankly, a little…routine. Then, one sleepy Sunday morning, I stumbled upon a recipe for Crab-Spinach Egg Casserole. Intrigued by the combination of savory crab, earthy spinach, and the comforting familiarity of a baked egg dish, I decided to give it a whirl. Let me tell you, that morning marked a delicious turning point in our brunch repertoire. The aroma alone, as it baked, was intoxicating, a promise of something special. And the first bite? Pure heaven. The creamy, cheesy eggs, studded with sweet crab meat and vibrant spinach, created a symphony of flavors and textures that had everyone reaching for seconds. Even my notoriously picky youngest declared it “the best breakfast ever!” Since then, this Crab-Spinach Egg Casserole has become a beloved staple, requested for holidays, potlucks, and any occasion that calls for a dish that’s both elegant and utterly comforting. It’s surprisingly easy to prepare, feeds a crowd, and is always met with rave reviews. If you’re looking to elevate your brunch game or discover a new family favorite, look no further. This recipe is a guaranteed winner.

Ingredients

This recipe utilizes simple, readily available ingredients to create a dish that’s far greater than the sum of its parts. Here’s what you’ll need to gather:

  • Dairy & Eggs:
    • 6 large eggs: These form the base of the casserole, providing structure and richness. Use large eggs for consistent results.
    • 1 cup whole milk: Whole milk adds creaminess and moisture to the casserole. You can substitute with 2% milk for a slightly lighter version, but whole milk delivers the best texture.
    • 1/2 cup heavy cream: Heavy cream elevates the richness and luxuriousness of the casserole. Don’t skimp on this for the ultimate creamy texture.
    • 4 ounces cream cheese, softened: Softened cream cheese is crucial for smooth incorporation and contributes a delightful tang and creamy texture. Full-fat cream cheese is recommended for the best flavor and consistency.
    • 1 cup shredded Gruyere cheese: Gruyere is a nutty, slightly sweet cheese that melts beautifully and adds a sophisticated flavor profile. You can substitute with Swiss cheese or a combination of Gruyere and Parmesan for variation.
    • 1/2 cup shredded Parmesan cheese: Parmesan cheese adds a salty, savory, and umami depth of flavor. Freshly grated Parmesan is always preferred for its superior taste.
  • Seafood & Vegetables:
    • 1 pound lump crab meat, drained well: Lump crab meat is ideal for its sweet, delicate flavor and meaty texture. Ensure it’s well-drained to avoid excess moisture in the casserole. Look for pasteurized lump crab meat in the refrigerated seafood section.
    • 10 ounces frozen spinach, thawed and squeezed dry: Frozen spinach is a convenient and cost-effective option. Thawing and thoroughly squeezing out the excess water is essential to prevent a watery casserole. Alternatively, you can use fresh spinach, wilted and drained.
    • 1 small onion, finely chopped: Onion provides a foundational savory flavor. Finely chopping ensures it cooks through and distributes evenly throughout the casserole. Yellow or white onions are suitable.
    • 2 cloves garlic, minced: Garlic adds aromatic pungency and depth of flavor. Freshly minced garlic is always best.
  • Flavor Enhancers & Seasonings:
    • 2 tablespoons unsalted butter: Butter is used for sautéing the aromatics and adds richness to the dish.
    • 1 teaspoon Dijon mustard: Dijon mustard adds a subtle tang and complexity that enhances the other flavors.
    • 1/4 teaspoon nutmeg, freshly grated (optional but recommended): Nutmeg adds a warm, slightly sweet, and aromatic note that complements the spinach and cheese beautifully. Freshly grated nutmeg is significantly more flavorful than pre-ground.
    • Salt and freshly ground black pepper to taste: Seasoning is crucial for bringing out the flavors. Use salt and freshly ground black pepper generously to taste, adjusting as needed.
    • Fresh chives, chopped (for garnish, optional): Fresh chives add a delicate oniony flavor and a pop of color for garnish.

Instructions

This Crab-Spinach Egg Casserole is surprisingly straightforward to assemble, making it perfect for both casual brunches and more formal gatherings. Follow these step-by-step instructions for a guaranteed success:

  1. Preheat the Oven and Prepare Baking Dish: Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish with butter or cooking spray. This prevents sticking and ensures easy removal of the casserole after baking.
  2. Sauté Aromatics: Melt the butter in a large skillet over medium heat. Add the finely chopped onion and sauté until softened and translucent, about 5-7 minutes. Add the minced garlic and cook for another minute until fragrant, being careful not to burn the garlic. Aromatics are the flavor foundation of the dish, so take your time with this step.
  3. Incorporate Spinach: Add the thawed and squeezed dry spinach to the skillet with the onions and garlic. Sauté for 2-3 minutes, stirring occasionally, until the spinach is heated through and any remaining moisture has evaporated. This step ensures the spinach is evenly distributed and not watery in the final casserole.
  4. Combine Wet Ingredients: In a large bowl, whisk together the eggs, whole milk, heavy cream, and Dijon mustard until well combined. Ensure the eggs are fully incorporated for a smooth and consistent texture.
  5. Blend in Cream Cheese: Add the softened cream cheese to the egg mixture. Whisk until the cream cheese is mostly smooth and incorporated. It’s okay if there are a few small lumps; they will melt during baking. Softened cream cheese is key for easy blending.
  6. Add Cheese and Seasonings: Stir in the shredded Gruyere cheese and Parmesan cheese, reserving a small amount of each for topping. Season generously with salt, freshly ground black pepper, and nutmeg (if using). Taste and adjust seasonings as needed. Remember that cheese and crab meat also contribute salt, so season gradually.
  7. Fold in Crab and Spinach Mixture: Gently fold in the cooked spinach and onion mixture, and the drained lump crab meat into the egg and cheese mixture. Be careful not to break up the crab meat too much. Distribute the ingredients evenly throughout the casserole mixture.
  8. Pour into Baking Dish and Top with Cheese: Pour the mixture evenly into the prepared baking dish. Sprinkle the reserved Gruyere and Parmesan cheese evenly over the top of the casserole. This cheese topping will create a beautiful golden-brown crust.
  9. Bake to Golden Perfection: Bake in the preheated oven for 35-40 minutes, or until the casserole is set and golden brown on top. A knife inserted into the center should come out mostly clean. The edges should be slightly puffed and the center should be just set.
  10. Rest Before Serving: Let the casserole rest for 10-15 minutes before serving. This allows the casserole to set further, making it easier to slice and serve, and also prevents it from being too watery. Garnish with fresh chives, if desired, before serving.

Nutrition Facts

(Estimated, per serving)

  • Servings: 8
  • Calories per serving: Approximately 450-550 calories (Note: This is an estimate and can vary based on specific ingredients and portion sizes).

Approximate Nutritional Breakdown (per serving):

  • Protein: 30-35 grams
  • Fat: 30-40 grams
    • Saturated Fat: 18-25 grams
  • Cholesterol: 250-300 mg
  • Sodium: 500-700 mg (varies depending on cheese and crab meat)
  • Carbohydrates: 5-7 grams
    • Fiber: 1-2 grams
    • Sugar: 2-3 grams

Important Note: These are estimations. For precise nutritional information, use a recipe analyzer tool with the specific brands and quantities of ingredients used. This casserole is relatively high in protein and fat, primarily from the eggs, dairy, and crab, and moderate in carbohydrates.

Preparation Time

  • Prep Time: 20-25 minutes (includes chopping vegetables, sautéing, and mixing ingredients)
  • Cook Time: 35-40 minutes
  • Resting Time: 10-15 minutes
  • Total Time: Approximately 1 hour 5 minutes – 1 hour 20 minutes

This Crab-Spinach Egg Casserole is relatively quick to prepare, especially considering its impressive flavor and crowd-pleasing appeal. Most of the time is hands-off baking time.

How to Serve

This versatile casserole can be served for various meals and occasions. Here are some serving suggestions:

  • Brunch or Breakfast:
    • Alongside fresh fruit: Berries, melon, and grapes provide a refreshing contrast to the richness of the casserole.
    • With breakfast pastries: Croissants, muffins, or scones complement the savory casserole beautifully.
    • Serve with a side salad: A light green salad with a vinaigrette dressing adds freshness and balance.
    • Offer toast or English muffins: For those who enjoy bread with their brunch.
  • Lunch or Light Dinner:
    • Pair with a heartier salad: A Caesar salad or a chopped salad with grilled chicken or shrimp can turn this into a more substantial meal.
    • Serve with soup: A light soup like tomato soup or a creamy vegetable soup makes a comforting and balanced lunch or dinner.
    • Accompany with roasted vegetables: Asparagus, broccoli, or roasted bell peppers provide a healthy and flavorful side.
  • Special Occasions & Potlucks:
    • As part of a brunch buffet: This casserole is perfect for feeding a crowd at holiday brunches or potlucks.
    • Serve with mimosas or Bloody Marys: Classic brunch cocktails pair wonderfully with the savory flavors of the casserole.
    • Garnish beautifully: Fresh chives, a sprinkle of paprika, or a few sprigs of parsley can elevate the presentation for special occasions.
  • Temperature:
    • Serve warm: Crab-Spinach Egg Casserole is best served warm, right out of the oven or after a brief resting period.
    • Can be reheated: Leftovers can be reheated in the oven or microwave, although the texture might be slightly softer.

Additional Tips for the Perfect Crab-Spinach Egg Casserole

To ensure your Crab-Spinach Egg Casserole is a resounding success every time, consider these helpful tips:

  • Tip 1: Thoroughly Drain the Spinach and Crab: Excess moisture is the enemy of a good casserole. Squeeze the thawed spinach relentlessly to remove as much water as possible. Similarly, drain the crab meat well to prevent a watery bottom. This step is crucial for the right texture.
  • Tip 2: Don’t Overbake: Overbaking can result in a dry and rubbery casserole. Bake until just set in the center and golden brown on top. The carryover heat will continue to cook it slightly as it rests. Use a knife inserted in the center to check for doneness.
  • Tip 3: Use Good Quality Crab Meat: The quality of the crab meat significantly impacts the flavor of the casserole. Lump crab meat is recommended for its sweetness and texture. Avoid imitation crab meat, which lacks the delicate flavor and can be overly processed.
  • Tip 4: Make it Ahead of Time (Partially): You can prepare the casserole mixture ahead of time and store it, covered, in the refrigerator for up to 24 hours. Bake it just before serving. This is a great time-saver for busy mornings or entertaining. You may need to add a few extra minutes of baking time if baking directly from the refrigerator.
  • Tip 5: Customize Your Cheese Blend: While Gruyere and Parmesan are classic choices, feel free to experiment with other cheeses. Swiss, Fontina, Monterey Jack, or even a touch of sharp cheddar can be delicious additions or substitutions. Consider using a blend of cheeses for a more complex flavor profile.

FAQ Section

Q1: Can I use fresh spinach instead of frozen?

A: Yes, you can absolutely use fresh spinach. You will need approximately 1 pound of fresh spinach. Wash it thoroughly, then sauté it in the skillet with the onions and garlic until wilted. Make sure to drain off any excess liquid before adding it to the casserole mixture.

Q2: Can I freeze Crab-Spinach Egg Casserole?

A: While you can freeze cooked egg casseroles, the texture may change slightly upon thawing and reheating, becoming a bit more watery. For best results, it’s recommended to consume it fresh. If you do freeze it, allow it to cool completely, then wrap it tightly in freezer-safe wrap and foil. Thaw overnight in the refrigerator and reheat in the oven.

Q3: I don’t have Gruyere cheese. What’s a good substitute?

A: Swiss cheese is the closest flavor and texture substitute for Gruyere. You can also use a combination of Swiss and Parmesan, or Fontina cheese. Monterey Jack is another mild and melty option if you prefer a less pronounced flavor.

Q4: Can I make this casserole vegetarian?

A: To make this casserole vegetarian, you would need to omit the crab meat. While it would no longer be “Crab-Spinach” casserole, you would still have a delicious Spinach and Cheese Egg Casserole. You could consider adding other vegetables like sautéed mushrooms or roasted red peppers to add more flavor and texture.

Q5: My casserole is watery. What did I do wrong?

A: The most common reason for a watery casserole is excess moisture from the spinach or crab. Ensure you squeeze the thawed spinach extremely well to remove as much water as possible. Also, make sure the crab meat is well-drained. Another possibility is not baking it long enough; ensure it’s set in the center. If you’ve followed the recipe and still find it watery, you might be using a particularly watery type of frozen spinach – in that case, even more thorough squeezing is key next time.

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Crab-Spinach Egg Casserole Recipe


  • Author: David

Ingredients

Scale

  • Dairy & Eggs:

    • 6 large eggs: These form the base of the casserole, providing structure and richness. Use large eggs for consistent results.
    • 1 cup whole milk: Whole milk adds creaminess and moisture to the casserole. You can substitute with 2% milk for a slightly lighter version, but whole milk delivers the best texture.
    • 1/2 cup heavy cream: Heavy cream elevates the richness and luxuriousness of the casserole. Don’t skimp on this for the ultimate creamy texture.
    • 4 ounces cream cheese, softened: Softened cream cheese is crucial for smooth incorporation and contributes a delightful tang and creamy texture. Full-fat cream cheese is recommended for the best flavor and consistency.
    • 1 cup shredded Gruyere cheese: Gruyere is a nutty, slightly sweet cheese that melts beautifully and adds a sophisticated flavor profile. You can substitute with Swiss cheese or a combination of Gruyere and Parmesan for variation.
    • 1/2 cup shredded Parmesan cheese: Parmesan cheese adds a salty, savory, and umami depth of flavor. Freshly grated Parmesan is always preferred for its superior taste.

  • Seafood & Vegetables:

    • 1 pound lump crab meat, drained well: Lump crab meat is ideal for its sweet, delicate flavor and meaty texture. Ensure it’s well-drained to avoid excess moisture in the casserole. Look for pasteurized lump crab meat in the refrigerated seafood section.
    • 10 ounces frozen spinach, thawed and squeezed dry: Frozen spinach is a convenient and cost-effective option. Thawing and thoroughly squeezing out the excess water is essential to prevent a watery casserole. Alternatively, you can use fresh spinach, wilted and drained.
    • 1 small onion, finely chopped: Onion provides a foundational savory flavor. Finely chopping ensures it cooks through and distributes evenly throughout the casserole. Yellow or white onions are suitable.
    • 2 cloves garlic, minced: Garlic adds aromatic pungency and depth of flavor. Freshly minced garlic is always best.

  • Flavor Enhancers & Seasonings:

    • 2 tablespoons unsalted butter: Butter is used for sautéing the aromatics and adds richness to the dish.
    • 1 teaspoon Dijon mustard: Dijon mustard adds a subtle tang and complexity that enhances the other flavors.
    • 1/4 teaspoon nutmeg, freshly grated (optional but recommended): Nutmeg adds a warm, slightly sweet, and aromatic note that complements the spinach and cheese beautifully. Freshly grated nutmeg is significantly more flavorful than pre-ground.
    • Salt and freshly ground black pepper to taste: Seasoning is crucial for bringing out the flavors. Use salt and freshly ground black pepper generously to taste, adjusting as needed.
    • Fresh chives, chopped (for garnish, optional): Fresh chives add a delicate oniony flavor and a pop of color for garnish.


Instructions

  1. Preheat the Oven and Prepare Baking Dish: Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish with butter or cooking spray. This prevents sticking and ensures easy removal of the casserole after baking.
  2. Sauté Aromatics: Melt the butter in a large skillet over medium heat. Add the finely chopped onion and sauté until softened and translucent, about 5-7 minutes. Add the minced garlic and cook for another minute until fragrant, being careful not to burn the garlic. Aromatics are the flavor foundation of the dish, so take your time with this step.
  3. Incorporate Spinach: Add the thawed and squeezed dry spinach to the skillet with the onions and garlic. Sauté for 2-3 minutes, stirring occasionally, until the spinach is heated through and any remaining moisture has evaporated. This step ensures the spinach is evenly distributed and not watery in the final casserole.
  4. Combine Wet Ingredients: In a large bowl, whisk together the eggs, whole milk, heavy cream, and Dijon mustard until well combined. Ensure the eggs are fully incorporated for a smooth and consistent texture.
  5. Blend in Cream Cheese: Add the softened cream cheese to the egg mixture. Whisk until the cream cheese is mostly smooth and incorporated. It’s okay if there are a few small lumps; they will melt during baking. Softened cream cheese is key for easy blending.
  6. Add Cheese and Seasonings: Stir in the shredded Gruyere cheese and Parmesan cheese, reserving a small amount of each for topping. Season generously with salt, freshly ground black pepper, and nutmeg (if using). Taste and adjust seasonings as needed. Remember that cheese and crab meat also contribute salt, so season gradually.
  7. Fold in Crab and Spinach Mixture: Gently fold in the cooked spinach and onion mixture, and the drained lump crab meat into the egg and cheese mixture. Be careful not to break up the crab meat too much. Distribute the ingredients evenly throughout the casserole mixture.
  8. Pour into Baking Dish and Top with Cheese: Pour the mixture evenly into the prepared baking dish. Sprinkle the reserved Gruyere and Parmesan cheese evenly over the top of the casserole. This cheese topping will create a beautiful golden-brown crust.
  9. Bake to Golden Perfection: Bake in the preheated oven for 35-40 minutes, or until the casserole is set and golden brown on top. A knife inserted into the center should come out mostly clean. The edges should be slightly puffed and the center should be just set.
  10. Rest Before Serving: Let the casserole rest for 10-15 minutes before serving. This allows the casserole to set further, making it easier to slice and serve, and also prevents it from being too watery. Garnish with fresh chives, if desired, before serving.

Nutrition

  • Serving Size: one normal portion
  • Calories: 450-550
  • Sugar: 2-3 grams
  • Sodium: 500-700 mg
  • Fat: 30-40 grams
  • Saturated Fat: 18-25 grams
  • Carbohydrates: 5-7 grams
  • Fiber: 1-2 grams
  • Protein: 30-35 grams
  • Cholesterol: 250-300 mg