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Spinach Casserole with Feta

Modified: Jul 3, 2025 by Chantal Kirkland · This post may contain affiliate links · Leave a Comment

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This spinach casserole with feta is the perfect blend of savory flavors and rich textures, making it a standout dish for any occasion. Whether you're cooking for your family, hosting a dinner party, or simply looking for a new vegetarian recipe to add to your repertoire, this casserole has got you covered.

spatula lifting a serving of spinach casserole with feta from a baking dish
Jump to:
  • Spinach Casserole with Feta
  • 📖Printable Recipe:
  • Spinach Casserole with Feta
  • 📋Ingredients
  • 🔪How Do I Make It?
  • 🍽What Do I Serve With This Casserole Dish?
  • ⏲️Chef's Tip
  • 💭Frequently Asked Questions
  • 🥘More Easy Casseroles

Spinach Casserole with Feta

🎥Video Recipe:

📖Printable Recipe:

Spinach Casserole with Feta

This spinach casserole with feta is a standout dish that's sure to impress your family and friends. The creamy texture, savory flavors, and delightful aroma make it a perfect addition to any meal.
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Prep Time 10 minutes mins
Cook Time 49 minutes mins
Course Breakfast
Cuisine American
Servings 6
Calories 352 kcal

Ingredients
  

For the casserole

  • 300 g 10 oz frozen spinach, thawed and dried
  • 200 g 7 oz feta cheese, cut into cubes
  • ½ white onion chopped
  • ¼ cup parmesan shredded
  • 3 tablespoon olive oil
  • 1 ½ teaspoon dry italian herbs
  • 3 garlic cloves minced
  • 1 teaspoon chili flakes
  • ¼ cup sour cream
  • 6 eggs

For the topping

  • ⅓ cup breadcrumbs
  • 2 tablespoon olive oil
  • ¼ cup parmesan

Instructions
 

  • Preheat the oven to 200C/400F.
  • In a large skillet, heat up some olive oil and cook onions for 5 minutes, add in garlic and spinach, cook for 5 minutes more. Season the mixture with salt, pepper, chili and dry italian herbs, mix well, cook for 2 minutes. Let cool down.
    300 g 10 oz frozen spinach, thawed and dried, ½ white onion, 3 tablespoon olive oil, 3 garlic cloves, 1 teaspoon chili flakes, 1 ½ teaspoon dry italian herbs
    combining spinach with other ingredients to make the filling for spinach casserole with feta
  • Whisk eggs with parmesan, sour cream, salt and pepper. Mix in spinach filling with feta and transfer into the casserole or pie dish.
    ¼ cup parmesan, ¼ cup sour cream, 6 eggs, 200 g 7 oz feta cheese, cut into cubes
    combining eggs and other ingredients to make spinach casserole with feta
  • Combine breadcrumbs with olive oil and parmesan. Sprinkle the mixture on top.
    ⅓ cup breadcrumbs, 2 tablespoon olive oil, ¼ cup parmesan
  • Bake for 35-40 minutes. Let cool down before slicing.
    final step of making spinach casserole with feta by topping with breadcrumbs before baking

Video

Nutrition

Calories: 352kcalCarbohydrates: 11gProtein: 16gFat: 28gSaturated Fat: 10gPolyunsaturated Fat: 3gMonounsaturated Fat: 13gTrans Fat: 0.02gCholesterol: 205mgSodium: 666mgPotassium: 318mgFiber: 2gSugar: 2gVitamin A: 6.474IUVitamin C: 4mgCalcium: 387mgIron: 3mg
Keyword casserole, egg, feta, spinach
Tried this recipe?Let us know how it was!

📋Ingredients

For the casserole:

  • 300 g (10 oz) frozen spinach, thawed and dried
  • 200 g (7 oz) feta cheese, cut into cubes
  • ½ white onion, chopped
  • ¼ cup parmesan, shredded
  • 3 tablespoon olive oil
  • 1 ½ teaspoon dry Italian herbs
  • 3 garlic cloves, minced
  • 1 teaspoon chili flakes
  • ¼ cup sour cream
  • 6 eggs

For the topping:

  • ⅓ cup breadcrumbs
  • 2 tablespoon olive oil
  • ¼ cup parmesan
ingredients to make spinach casserole with feta laid out on a table

🔪How Do I Make It?

Preheat the oven to 200C/400F.

In a large skillet, heat up some olive oil and cook onions for 5 minutes, add in garlic and spinach, cook for 5 minutes more. Season the mixture with salt, pepper, chili and dry Italian herbs, mix well, cook for 2 minutes. Let cool down.

combining spinach with other ingredients to make the filling for spinach casserole with feta

Whisk eggs with parmesan, sour cream, salt and pepper. Mix in spinach filling with feta and transfer into the casserole or pie dish.

combining eggs and other ingredients to make spinach casserole with feta

Combine breadcrumbs with olive oil and parmesan. Sprinkle the mixture on top. 

Bake for 35-40 minutes. Let cool down before slicing.

final step of making spinach casserole with feta by topping with breadcrumbs before baking

🍽What Do I Serve With This Casserole Dish?

Complementing your spinach casserole with the right side dishes can elevate your meal to the next level. Here are some fantastic options to serve alongside:

Fresh Garden Salad

A crisp and refreshing garden salad with a light vinaigrette pairs beautifully with the rich and creamy spinach casserole. The fresh vegetables add a delightful contrast to the dish.

Garlic Bread

Warm, buttery garlic bread is always a hit. The crunchy texture and savory flavor make it an excellent accompaniment to the creamy casserole.

Roasted Vegetables

Roasted carrots, bell peppers, and zucchini bring an array of flavors and colors to your meal. The caramelized edges and tender insides of the vegetables complement the casserole perfectly.

overhead view of a baking dish of spinach casserole with feta ready to serve

⏲️Chef's Tip

Creating a delicious spinach casserole with feta involves a few key techniques and tips:

Properly Thaw Frozen Spinach

Ensure that your frozen spinach is thoroughly thawed and dried before using it in the recipe. Excess moisture can make the casserole watery. Pat the spinach dry with paper towels to remove any excess liquid.

Seasoning is Key

Don't be afraid to season your dish generously. The combination of garlic, chili flakes, and Italian herbs adds depth and complexity to the flavors. Taste your mixture before baking and adjust the seasoning if needed.

Layer the Flavors

When mixing the spinach filling with other ingredients, make sure everything is well combined. This ensures that each bite is packed with a harmonious blend of flavors, from the creamy feta to the savory onions.

serving of spinach casserole with feta on a plate ready to enjoy

💭Frequently Asked Questions

Can I use fresh spinach instead of frozen?

Absolutely! Fresh spinach can be used as a substitute. Simply sauté it briefly until wilted, then proceed with the recipe as directed.

Can I prepare this casserole in advance?

Yes, you can assemble the casserole a day ahead and refrigerate it. When you're ready to bake, allow it to come to room temperature first, then bake as instructed.

What other cheeses can I use?

While feta is the star of this dish, you can experiment with other cheeses like goat cheese or mozzarella for a different flavor profile.

How do I store leftovers?

Store any leftover spinach casserole in an airtight container in the refrigerator. It will keep well for up to three days. To reheat, simply place it in the oven at 350°F (175°C) until warmed through, or microwave individual portions until hot.

Can I freeze the spinach casserole?

Yes, you can freeze the casserole before baking. Assemble it in a freezer-safe dish, cover tightly, and freeze for up to three months. When ready to bake, thaw it in the refrigerator overnight and then follow the baking instructions.

Is this dish suitable for meal prep?

Definitely! This spinach casserole with feta is an excellent meal prep option. You can portion it out into individual servings, making it a convenient choice for lunches or quick dinners throughout the week. Just reheat as needed.

What can I serve for dessert after this casserole?

A light dessert such as a fruit salad or a lemon sorbet would be a perfect way to finish off the meal. These options provide a refreshing contrast to the richness of the casserole and keep your dinner balanced.

baking dish of spinach casserole with feta fresh from the oven ready to serve

🥘More Easy Casseroles

If you're a fan of cheesy casseroles, why stop at just one? Here are a few more tempting casserole ideas I'd love to share with you:

  • Cheesy Potato and Mushroom Casserole
  • Twice-Baked Potato Casserole
  • Cheesy Corn Casserole
  • Four Cheese Pasta Casserole
  • Cheesy Gnocchi Casserole

More Best Vegetable Casserole Recipes

  • baking dish of mini squash casserole on a table ready to serve
    Mini Squash Casserole
  • Crustless Quiche with Broccoli and Cauliflower
  • casserole dish filled with Tomato and Houllimi Bake
    Tomato and Halloumi Bake
  • closeup of a bowl full of tomato casserole
    Tomato Casserole

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