Savory Spinach and Feta Casserole – So Simple & Flavorful

There’s something incredibly comforting about a warm, hearty casserole that brings both flavor and simplicity to your table. This Savory Spinach and Feta Casserole is the perfect dish for those moments when you want something satisfying, nutritious, and easy to prepare. Ideal for a cozy weeknight dinner, a relaxed weekend brunch, or even a potluck gathering, this recipe effortlessly combines creamy textures with bright Mediterranean flavors.

Inspired by classic Greek cuisine, this casserole takes the beloved spinach and feta pairing to new heights. It captures the essence of spanakopita but skips the phyllo dough for an easier, crustless version that’s just as delicious. With its golden top, fluffy eggs, and bursts of salty feta in every bite, this dish delivers everything you love about comfort food—without the heaviness. It’s wholesome, balanced, and simply irresistible.

Ingredients

• 10 ounces fresh spinach (roughly 8 cups), washed and chopped

• 1 tablespoon olive oil

• 1 small onion, finely diced

• 3 garlic cloves, minced

• 1 teaspoon salt, divided

• ½ teaspoon black pepper

• 6 large eggs

• 1 cup milk (whole or 2%)

• 1 cup crumbled feta cheese

• ½ cup shredded mozzarella or Monterey Jack cheese

• ¼ teaspoon crushed red pepper flakes (optional, for a light kick)

• ½ teaspoon dried oregano

• ¼ teaspoon ground nutmeg

• Non-stick cooking spray or a little olive oil for greasing

Directions

1. Preheat the Oven
   Preheat your oven to 375°F (190°C). Lightly grease a medium-sized baking dish (about 8×8 or 9×9 inches) with cooking spray or olive oil to prevent sticking.

2. Sauté the Vegetables
   In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add the diced onion and cook until soft and translucent, about 4–5 minutes. Stir in the garlic and cook for an additional 30 seconds until fragrant.

3. Cook the Spinach
   Add the chopped spinach to the skillet in batches, stirring as it wilts. Sprinkle with ½ teaspoon of salt to help release moisture. Continue cooking until all the spinach is wilted and most of the liquid has evaporated—this should take around 5 minutes. Remove from heat and allow it to cool slightly.

4. Prepare the Egg Mixture
   In a large mixing bowl, whisk together the eggs, milk, remaining ½ teaspoon of salt, black pepper, oregano, and nutmeg until well combined.

5. Combine Ingredients
   Add the cooled spinach mixture to the eggs, then stir in the crumbled feta cheese and shredded mozzarella. Mix gently until all ingredients are evenly distributed.

6. Assemble the Casserole
   Pour the mixture into your prepared baking dish, smoothing out the top with a spatula. Sprinkle a little extra feta on top for extra flavor and a lovely golden finish.

7. Bake Until Golden
   Place the casserole in the oven and bake for 30–35 minutes, or until the top is set and lightly browned. A toothpick inserted in the center should come out clean.

8. Cool and Serve
   Let the casserole cool for 10 minutes before slicing. This helps it set and makes it easier to serve neat portions.

Prep Time, Cook Time, Total Time, Yield

• Prep Time: 15 minutes

• Cook Time: 35 minutes

• Total Time: 50 minutes

• Yield: 6 servings

Why You’ll Love This Spinach and Feta Casserole

This casserole is the ultimate combination of ease, nutrition, and flavor. Whether you’re preparing breakfast, brunch, or dinner, it’s one of those recipes that fit seamlessly into your weekly rotation.

• Quick and Simple: With minimal prep and a short baking time, it’s perfect for busy days.

• Nutritious and Wholesome: Packed with iron-rich spinach, protein from eggs, and calcium from cheese.

• Versatile: Great on its own or as a side with roasted potatoes, fresh salad, or grilled chicken.

• Meal Prep Friendly: Keeps well in the fridge for up to 4 days and reheats beautifully.

If you’re looking for a way to add more greens to your meals without sacrificing flavor, this recipe is your answer.

Tips for the Best Casserole

1. Use Fresh Spinach for Best Flavor
   Fresh spinach has a bright, earthy flavor that stands out in this casserole. You can use frozen spinach if that’s what you have—just thaw it completely and squeeze out all excess water.

2. Don’t Skip the Seasonings
   Nutmeg, oregano, and garlic give this dish a warm, savory depth. A pinch of crushed red pepper adds a subtle heat that complements the feta perfectly.

3. Add Extra Veggies for Variety
   This casserole is very forgiving—feel free to stir in diced red bell peppers, sun-dried tomatoes, or even mushrooms for added texture and taste.

4. Let It Rest Before Slicing
   Allowing the casserole to rest after baking helps it set and makes it easier to serve clean slices.

5. Customize the Cheese
   While feta gives the dish its signature tang, you can mix in ricotta or goat cheese for a creamier texture.

How to Serve This Casserole

This spinach and feta casserole can be served warm or at room temperature. It’s just as good fresh from the oven as it is the next day, making it ideal for meal prepping or entertaining.

For Breakfast or Brunch: Pair with a side of crispy hash browns, sliced tomatoes, or toasted bread. A fruit salad on the side adds a refreshing balance.

For Lunch or Dinner: Serve with a crisp garden salad or a bowl of soup for a complete, satisfying meal. It also makes a great side dish for grilled chicken or baked fish.

For Gatherings: Bake it in a large dish and cut it into small squares for easy serving at potlucks or brunch buffets. Guests will love its vibrant color and bold flavor.

Storage and Reheating Tips

• Refrigerate: Store leftovers in an airtight container in the refrigerator for up to 4 days.

• Freeze: For longer storage, wrap individual portions tightly and freeze for up to 2 months.

• Reheat: Warm in the oven at 350°F for about 10 minutes or microwave individual portions for 1–2 minutes.

This casserole maintains its flavor and texture beautifully even after reheating, making it an excellent option for busy weekdays.

Nutritional Benefits

This dish isn’t just delicious—it’s nutrient-dense and packed with good-for-you ingredients:

• Spinach: A powerhouse of iron, magnesium, and vitamins A, C, and K.

• Eggs: High in protein, keeping you full and energized throughout the day.

• Feta Cheese: Adds calcium and healthy fats, along with a tangy flavor that balances the greens.

• Olive Oil: Provides heart-healthy monounsaturated fats.

Each bite delivers a satisfying mix of flavor and nutrition that supports a balanced diet while still feeling indulgent.

Creative Variations to Try

Once you’ve mastered the basic recipe, you can experiment with these fun variations:

1. Spinach and Mushroom Casserole: Add 1 cup of sautéed mushrooms for an earthy flavor.

2. Greek-Inspired Veggie Bake: Toss in chopped tomatoes, kalamata olives, and fresh parsley for extra Mediterranean flair.

3. Cheesy Broccoli and Spinach Casserole: Replace half the spinach with steamed broccoli florets for added crunch and color.

4. Zesty Spinach and Feta Breakfast Cups: Pour the mixture into muffin tins and bake for 20 minutes for easy grab-and-go portions.

5. Spinach and Feta Rice Casserole: Mix in a cup of cooked rice for a heartier meal that doubles as a comforting dinner.

Frequently Asked Questions

Can I use frozen spinach instead of fresh?
Yes, frozen spinach works perfectly well for this recipe, especially if you’re short on time or want to save money. The key is to thaw it completely and squeeze out as much moisture as possible before adding it to the casserole mixture. You can do this by pressing it between layers of paper towels or using a clean kitchen towel. Removing excess water is important because too much liquid will make the casserole soggy instead of fluffy. Once drained, frozen spinach blends seamlessly with the eggs and cheese, offering the same vibrant color and earthy flavor as fresh spinach.

Can I make this casserole ahead of time?
Absolutely! This make-ahead casserole is ideal for busy mornings or dinner parties when you want to spend less time cooking and more time enjoying the meal. You can prepare the entire mixture a day in advance, cover it tightly with plastic wrap or foil, and refrigerate it overnight. When you’re ready to bake, simply uncover and place it in a preheated oven. If it’s been chilled, add a few extra minutes to the baking time. This feature makes it perfect for meal prep, brunch gatherings, or weeknight dinners.

What can I substitute for feta cheese?
If you don’t have feta on hand or prefer a milder taste, you can easily swap it with crumbled goat cheese, ricotta, or cottage cheese. Goat cheese provides a creamy tang similar to feta, while ricotta offers a smoother, lighter texture. Cottage cheese adds a subtle flavor and extra protein. Each of these options blends beautifully with the spinach and eggs, maintaining the creamy, savory balance that makes this dish so satisfying.

Is this casserole vegetarian?
Yes, this Savory Spinach and Feta Casserole is entirely vegetarian and free from pork or alcohol. It’s a wholesome, flavorful dish that fits a wide variety of dietary preferences while remaining rich in protein, calcium, and vitamins from its natural ingredients.

Final Thoughts

The Savory Spinach and Feta Casserole is more than just a simple baked dish—it’s a flavorful, wholesome comfort meal that’s both easy and elegant. Whether you’re cooking for your family, meal prepping for the week, or hosting a brunch, this recipe delivers satisfaction every single time.

Its combination of tender spinach, creamy feta, and fluffy eggs creates a balance of flavors that feels both refreshing and indulgent. Plus, it’s a beautiful way to enjoy greens in a form that everyone at the table will love.

Give this dish a try the next time you want something simple yet special. Once you taste that first forkful, you’ll understand why this casserole is bound to become a household favorite.

Savory Spinach and Feta Casserole – So Simple & Flavorful

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• Author: Michelle Davis
• Total Time: 50 minutes
• Yield: 8 servings 1x

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Description

This Savory Spinach and Feta Casserole is a comforting, easy-to-make dish that delivers the perfect balance of creamy texture and bold Mediterranean flavor. Inspired by traditional Greek cuisine, it brings together fresh spinach, tangy feta, and fluffy eggs in a wholesome, crustless bake that’s ideal for breakfast, brunch, or dinner. Simple to prepare and versatile to serve, it’s a dish you’ll come back to again and again.

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Ingredients

Scale 1x2x3x

• 10 ounces fresh spinach (about 8 cups), chopped

• 1 tablespoon olive oil

• 1 small onion, finely diced

• 3 garlic cloves, minced

• 1 teaspoon salt, divided

• ½ teaspoon black pepper

• 6 large eggs

• 1 cup milk (whole or 2%)

• 1 cup crumbled feta cheese

• ½ cup shredded mozzarella or Monterey Jack cheese

• ¼ teaspoon crushed red pepper flakes (optional)

• ½ teaspoon dried oregano

• ¼ teaspoon ground nutmeg

• Non-stick cooking spray or olive oil for greasing

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Instructions

• Preheat the oven to 375°F (190°C). Lightly grease an 8×8 or 9×9-inch baking dish with cooking spray or olive oil.

• Heat olive oil in a skillet over medium heat. Add the diced onion and sauté until soft and translucent, about 4–5 minutes. Stir in the minced garlic and cook for another 30 seconds.

• Add the chopped spinach in batches, stirring as it wilts. Sprinkle with ½ teaspoon salt. Cook until all spinach is wilted and excess moisture has evaporated, about 5 minutes. Remove from heat and let it cool slightly.

• In a large mixing bowl, whisk together eggs, milk, remaining ½ teaspoon salt, black pepper, oregano, and nutmeg until smooth.

• Add the cooled spinach mixture to the eggs, followed by feta and mozzarella. Stir gently to combine.

• Pour the mixture into the prepared baking dish and spread evenly. Sprinkle extra feta on top if desired.

• Bake for 30–35 minutes or until the top is golden brown and the center is set. A toothpick inserted in the middle should come out clean.

• Let the casserole cool for 10 minutes before slicing and serving.

Notes

For best results, drain spinach thoroughly to prevent excess moisture. You can use frozen spinach—just thaw and squeeze it well before adding. This casserole can be prepared a day ahead; refrigerate overnight and bake when ready. It’s excellent for meal prep, keeping up to 4 days in the fridge. Add extra vegetables such as mushrooms or red bell peppers for variety. Reheat leftovers in the oven or microwave for a quick, nutritious meal any time of day.

• Prep Time: 15 minutes
• Cook Time: 35 minutes

Michelle Davis