Spinach Feta Egg Bake: The Ultimate Breakfast Casserole

Tired of the same old breakfast routine that leaves you hungry by mid-morning? This Spinach Feta Egg Bake is about to transform your breakfast game forever. This hearty, protein-packed casserole combines the earthy flavors of fresh spinach with tangy feta cheese and fluffy eggs for a breakfast that’s as nutritious as it is delicious.

Hi, I’m Emma, the heart behind GusRecipes! As someone who believes breakfast should fuel your entire morning, I’ve perfected this egg bake over countless Sunday brunches with family and friends. What started as a simple way to use up leftover spinach has become my most-requested recipe whenever I host breakfast gatherings.

In this comprehensive guide, you’ll discover everything you need to know about creating the perfect Spinach Feta Egg Bake from selecting the freshest ingredients and prepping ahead of time to customization options for dietary preferences. I’ll also share my secret techniques for achieving that perfectly fluffy texture that makes this casserole truly exceptional.

Why This Spinach Feta Egg Bake Recipe Works

• Nutrient-dense yet indulgent: Combines protein-rich eggs with vitamin-packed spinach and calcium-loaded feta
• Make-ahead friendly: Prep the night before and pop it in the oven for stress-free mornings
• Customizable for any dietary need: Easily adapted for low-carb, vegetarian, or Mediterranean diets
• Perfect for meal prep: Keeps well in the refrigerator for quick, nutritious breakfasts all week
• Budget-friendly ingredients: Uses affordable, easy-to-find items that won’t break the bank

Choosing the Right Ingredients for Your Spinach Feta Egg Bake

The Egg Foundation

Eggs form the backbone of this breakfast casserole, so quality matters. Look for eggs with bright orange yolks and shells that aren’t easily cracked these indicators suggest fresher, more nutritious eggs. Free-range or organic eggs often provide better flavor, though regular eggs work perfectly fine too. For an extra protein boost, you can incorporate a mix of whole eggs and egg whites.

Spinach Selection

When it comes to spinach for your egg bake, you have options:

• Fresh spinach: Provides the best texture and most vibrant flavor; be sure to remove any tough stems
• Frozen spinach: Convenient and economical; just ensure it’s thoroughly thawed and drained to prevent a watery casserole
• Baby spinach: Tends to have a milder flavor and requires no stem removal, making it ideal for quick preparation

Cheese Considerations

While feta is the star cheese in this recipe, selecting the right variety makes a difference:

• Choose a block of feta in brine rather than pre-crumbled varieties for superior flavor and texture
• Traditional Greek or Bulgarian feta offers the best tangy profile
• For a milder option, French feta works wonderfully
• If feta isn’t available, goat cheese or even cottage cheese can serve as alternatives

Ingredients & Prep for Your Spinach Feta Egg Bake

Base Ingredients

• 10 large eggs
• 2 cups fresh spinach (or 1 cup thawed frozen spinach, well drained)
• 1 cup crumbled feta cheese
• 1/2 cup milk or unsweetened almond milk
• 1/2 cup diced red bell pepper
• 1/3 cup diced onion
• 3 cloves garlic, minced
• 2 tbsp olive oil
• 1 tsp dried oregano
• 1/2 tsp red pepper flakes (optional)
• Salt and pepper to taste

Optional Add-ins

• Cherry tomatoes, halved
• Fresh herbs (dill, parsley, or basil)
• Cooked quinoa for extra protein and texture
• Diced avocado for serving

Preparation Essentials

Before diving into cooking, proper preparation ensures your spinach feta egg bake turns out perfectly:

• If using fresh spinach, wash thoroughly and pat dry before roughly chopping
• Pre-cook vegetables slightly to remove excess moisture and enhance flavor
• Bring eggs to room temperature for more even cooking
• Use a well-greased 9×13 baking dish for easy serving and cleanup

Looking for more breakfast inspiration? Check out my Pinterest for countless morning meal ideas that will revolutionize your breakfast routine!

Step-by-Step Cooking Instructions for Spinach Feta Egg Bake

Pre-Cooking Prep for Your Egg Bake

1. Preheat your oven to 375°F (190°C) and grease a 9×13 inch baking dish.
2. In a large skillet, heat olive oil over medium heat. Add diced onions and cook until translucent, about 3-4 minutes.
3. Add minced garlic and cook for another 30 seconds until fragrant.
4. Add diced bell peppers and sauté for 2-3 minutes until slightly softened.
5. If using fresh spinach, add it to the skillet and cook until wilted, about 2 minutes. If using frozen spinach, ensure it’s thoroughly drained and add it to the vegetable mixture.
6. Season the vegetable mixture with salt, pepper, dried oregano, and red pepper flakes if using.

Assembling Your Egg Bake

1. In a large bowl, whisk together the eggs and milk until well combined and slightly frothy.
2. Add 3/4 of the crumbled feta cheese to the egg mixture and stir gently.
3. Transfer the cooked vegetable mixture to the prepared baking dish, spreading it evenly.
4. Pour the egg and cheese mixture over the vegetables.
5. Use a fork to gently mix, ensuring the vegetables and eggs are evenly distributed.
6. Sprinkle the remaining feta cheese on top.

Baking Your Spinach Feta Egg Casserole

1. Place the baking dish in the preheated oven and bake for 25-30 minutes.
2. The egg bake is done when the center is set and no longer jiggly, and the edges are slightly browned.
3. To test for doneness, insert a knife into the center it should come out clean.

Resting Your Egg Bake

Allow your spinach feta egg bake to rest for at least 5 minutes before cutting. This resting period allows the eggs to set completely and makes serving neater. If you’re preparing this for a brunch gathering, you can let it rest for up to 10 minutes while still maintaining a warm temperature for serving.

Pro Tips for Perfect Spinach Feta Egg Bake

Avoiding Common Egg Bake Mistakes

• Don’t skip pre-cooking vegetables: Raw vegetables release moisture during baking, potentially resulting in a soggy casserole
• Watch salt content carefully: Feta cheese is already salty, so go easy on additional salt
• Don’t overbake: Eggs continue cooking slightly after removal from the oven – taking it out when the center is just set prevents a rubbery texture
• Use room-temperature ingredients: Cold eggs and milk can lead to uneven cooking and longer bake times

Tools for Egg Bake Success

• Ceramic or glass baking dish: Provides even heat distribution
• Whisk: Ensures eggs are properly aerated for maximum fluffiness
• Non-stick skillet: Makes sautéing vegetables easier
• Instant-read thermometer: Optional but helpful your egg bake is done at 160°F (71°C)

Storage & Reheating Strategies

• Refrigeration: Store leftover egg bake covered in the refrigerator for up to 4 days
• Freezing: Cut into individual portions, wrap in plastic wrap and foil, then freeze for up to 2 months
• Reheating: For best results, reheat in a 350°F oven for 10-15 minutes or microwave individual portions for 60-90 seconds

Flavor Variations for Your Spinach Feta Egg Bake

Mediterranean Inspiration

Transform your egg bake with these Mediterranean-inspired additions:

• Add kalamata olives and sun-dried tomatoes
• Incorporate fresh oregano and a sprinkle of za’atar
• Serve with a side of tzatziki for a refreshing contrast

Low-Carb Adaptations

For those following a keto or low-carb diet:

• Replace milk with heavy cream or additional eggs
• Add extra cheese for fat content and richness
• Include more non-starchy vegetables like mushrooms or zucchini

Global Flavor Profiles

Serving Suggestions for Spinach Feta Egg Bake

This versatile egg casserole pairs beautifully with numerous sides to create a complete meal:

• For weekday breakfasts: Serve with fresh fruit and whole-grain toast
• For weekend brunches: Accompany with roasted potatoes, a fresh green salad, and crusty artisan bread
• For lighter fare: Pair with a simple arugula salad dressed with lemon vinaigrette
• Beverage pairings: Fresh orange juice, coffee, or for special occasions, mimosas or a crisp Sauvignon Blanc

For an extra special presentation, top individual servings with:

• A dollop of Greek yogurt
• Fresh herbs such as dill or chives
• A light drizzle of extra virgin olive oil
• A sprinkle of everything bagel seasoning

FAQs About Spinach Feta Egg Bake

Can I make this spinach feta egg bake ahead of time?

Absolutely! You can prepare the entire dish the night before, cover it with plastic wrap, and refrigerate it overnight. When ready to bake, remove it from the refrigerator while the oven preheats, then bake as directed, adding about 5-10 minutes to the cooking time.

How do I know when my egg bake is done cooking?

Your spinach feta egg bake is done when the center is set and no longer jiggly, and the edges are slightly browned. The internal temperature should reach 160°F (71°C). A knife inserted into the center should come out clean.

Can I use egg whites instead of whole eggs?

Yes! For a lower-cholesterol version, substitute two egg whites for each whole egg. The texture will be slightly different but still delicious. You may want to add a bit more seasoning as egg whites have less flavor than whole eggs.

How can I prevent my egg bake from becoming watery?

To prevent excess moisture, make sure to sauté vegetables before adding them to your egg mixture, thoroughly drain frozen spinach, and use block feta cheese rather than feta packed in water. If using tomatoes, remove some seeds and pulp first.

Is this spinach feta egg bake suitable for vegetarians?

This recipe is perfect for vegetarians as it contains no meat products. For a vegan version, you would need to substitute the eggs with a plant-based alternative like tofu and use plant-based cheese instead of feta.

Conclusion

The Spinach Feta Egg Bake is more than just a breakfast casserole it’s a versatile, nutritious meal that can simplify your mornings while delighting your taste buds. Whether you’re hosting a weekend brunch, meal prepping for busy weekdays, or looking for a protein-packed dinner option, this egg bake delivers incredible flavor with minimal effort.

I hope this recipe becomes a staple in your household as it has in mine. The beauty of this dish lies in its flexibility feel free to experiment with ingredients based on what you have on hand or your personal preferences. The foundation of eggs, spinach, and feta provides a reliable base for countless variations.

Remember to share your creations with me on social media I love seeing how you make these recipes your own! And if you’re looking for more breakfast inspiration, be sure to explore my other morning recipes that make waking up something to look forward to.

Happy cooking!

Spinach Feta Egg Bake: The Ultimate Breakfast Casserole

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• Author: Emma Emma
• Total Time: 40 mins
• Yield: 6 servings 1x
• Diet: Vegetarian

Print Recipe

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Description

A light and flavorful Spinach Feta Egg Bake packed with protein, fluffy eggs, creamy feta, and tender spinach. Perfect for breakfast, brunch, or meal prep.

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Ingredients

Scale 1x2x3x

8 large eggs

1/2 cup milk or half-and-half

2 cups fresh spinach, chopped

1/2 cup crumbled feta cheese

1/4 cup diced onion

1/4 cup diced red bell pepper

1 tbsp olive oil

1/2 tsp salt

1/4 tsp black pepper

1/4 tsp garlic powder

Cooking spray or butter for greasing

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Instructions

1. Preheat oven to 375°F (190°C) and lightly grease an 8×8-inch baking dish.

2. In a skillet, heat olive oil over medium heat and sauté onion and bell pepper until softened, about 3–4 minutes.

3. Add spinach and cook until wilted, about 1–2 minutes. Remove from heat.

4. In a large bowl, whisk together eggs, milk, salt, pepper, and garlic powder.

5. Stir in the cooked vegetables and crumbled feta.

6. Pour mixture into the prepared baking dish and smooth the top.

7. Bake for 25–30 minutes, or until the eggs are set and the top is lightly golden.

8. Cool slightly before slicing and serving.

Notes

Add cooked bacon, sausage, or diced tomatoes for variety.

Great for meal prep — refrigerate leftovers and reheat in the microwave.

Serve with avocado or hot sauce for extra flavor.

• Prep Time: 10 mins
• Cook Time: 30 mins
• Category: Breakfast
• Method: Baked
• Cuisine: Mediterranean

Nutrition

• Serving Size: 1 slice
• Calories: 190
• Sugar: 2g
• Sodium: 370mg
• Fat: 13g
• Saturated Fat: 5g
• Unsaturated Fat: 7g
• Trans Fat: 0g
• Carbohydrates: 4g
• Fiber: 1g
• Protein: 15g
• Cholesterol: 245mg

Keywords: spinach egg bake, feta egg casserole, healthy breakfast, make ahead brunch, high protein meal