Baked Zucchini, Spinach, and Feta Casserole
Baked Zucchini, Spinach, and Feta Casserole is a delightful dish that combines wholesome ingredients for a nutritious and satisfying meal. This casserole is perfect for any occasion, whether it’s a family dinner or a potluck gathering. Packed with fresh vegetables and creamy feta cheese, it offers a savory flavor profile that will please everyone at the table. Plus, it’s simple to prepare, making it a go-to recipe for busy weeknights.
Why You’ll Love This Recipe
- Nutritious and Flavorful: Loaded with spinach and zucchini, this casserole is a great way to get your daily dose of veggies while enjoying every bite.
- Easy to Prepare: With minimal prep time and straightforward instructions, you can whip this up quickly even on a busy day.
- Versatile Dish: Serve it as a main course or side dish; it pairs well with salads and grilled meats.
- Kid-Friendly: The cheesy goodness makes it appealing to kids, ensuring they eat their greens without fuss.
- Meal Prep Friendly: This casserole keeps well in the fridge, making it perfect for meal prep or leftovers.
Tools and Preparation
For this recipe, you’ll need some essential tools to ensure everything goes smoothly in the kitchen.
Essential Tools and Equipment
- Skillet
- Casserole dish (9 x 13 inch)
- Mixing bowl
- Knife and cutting board
Importance of Each Tool
- Skillet: Ideal for sautéing vegetables evenly, helping to enhance their flavors before baking.
- Casserole Dish: Provides the perfect size for even cooking and easy serving of your baked dish.
- Mixing Bowl: Essential for combining all ingredients thoroughly for a uniform flavor throughout the casserole.

Ingredients
This dish packs a hearty dose of veggies and all the cheesy goodness that you look for in a casserole.
Fresh Vegetables
- 2 tablespoons olive oil
- 3 cups baby spinach
- 2 zucchini (small, diced small)
- 2 yellow squash (small, diced small OR 2 more zucchini if yellow squash is unavailable)
Cheeses
- 1/4 cup feta cheese crumbles (fat-free)
- 1/4 cup parmesan cheese (low-fat, grated)
Breading and Binding Agent
- 1/4 cup whole-wheat panko breadcrumbs
- 2 egg whites
Seasoning
- 1/2 teaspoon kosher salt
- 2 teaspoons garlic powder
- 1/2 teaspoon ground black pepper
- 1 teaspoon dried basil leaves
How to Make Baked Zucchini, Spinach, and Feta Casserole
Step 1: Preheat the Oven
Preheat your oven to 400 degrees Fahrenheit. Spray your 9 x 13 inch casserole dish with non-stick spray to prevent sticking.
Step 2: Sauté Vegetables
In a large skillet, heat the olive oil over medium heat.
* Once hot, add the baby spinach along with diced zucchini and yellow squash.
* Cook for about 5 minutes until the spinach wilts and the squash becomes tender.
* Drain any excess liquid from the skillet and transfer the mixture into a large mixing bowl.
Step 3: Combine Ingredients
In the mixing bowl with the vegetable mixture:
1. Add feta cheese crumbles, parmesan cheese, whole-wheat panko breadcrumbs, egg whites, kosher salt, garlic powder, black pepper, and dried basil leaves.
2. Mix all ingredients thoroughly until well combined.
Step 4: Bake the Casserole
Spread the mixture evenly in your prepared casserole dish.
Bake in the preheated oven for about 30 to 40 minutes or until golden brown on top.
Allow it to cool slightly before serving.
Enjoy your delicious Baked Zucchini, Spinach, and Feta Casserole!
How to Serve Baked Zucchini, Spinach, and Feta Casserole
This Baked Zucchini, Spinach, and Feta Casserole is versatile and can be enjoyed in various ways. Whether you’re serving it as a main dish or a side, it pairs well with many flavors.
As a Main Dish
- Serve it hot: This casserole is delightful when served warm, allowing the flavors to shine.
- Top with fresh herbs: Garnish with chopped parsley or basil for an added burst of freshness.
As a Side Dish
- Pair with grilled chicken: The creamy texture complements the smoky flavor of grilled meats perfectly.
- Accompany with a light salad: A simple green salad balances the richness of the casserole.
In a Wrap
- Use as a filling: Spoon the casserole into whole wheat wraps for a quick and healthy meal on-the-go.
- Add extra veggies: Include sliced bell peppers or cucumbers for added crunch.
With Quinoa or Rice
- Serve over quinoa: A nutritious base that enhances the dish’s hearty appeal.
- Combine with brown rice: This pairing makes for a filling meal that’s great for leftovers.
How to Perfect Baked Zucchini, Spinach, and Feta Casserole
To ensure your Baked Zucchini, Spinach, and Feta Casserole turns out perfect every time, consider these helpful tips.
- Use fresh ingredients: Fresh vegetables enhance the flavor and texture of the casserole.
- Don’t skip draining: Be sure to drain excess liquid from the cooked vegetables to prevent sogginess.
- Adjust seasoning: Taste the mixture before baking and adjust salt and spices according to your preference.
- Experiment with cheese: Try different types of cheese like goat cheese or mozzarella for varied flavors.
- Let it cool slightly: Allowing it to rest after baking helps set the casserole and makes serving easier.
Best Side Dishes for Baked Zucchini, Spinach, and Feta Casserole
Pairing your Baked Zucchini, Spinach, and Feta Casserole with complementary side dishes can elevate your meal experience. Here are some excellent options:
-
Garlic Bread
A crunchy garlic bread adds a satisfying texture alongside the creamy casserole. -
Roasted Vegetables
Seasonal roasted veggies bring additional color and nutrients to your plate. -
Cucumber Salad
A refreshing cucumber salad provides a crisp contrast to the warmth of the casserole. -
Steamed Broccoli
Bright green broccoli adds a healthy touch while maintaining simplicity in flavor. -
Chickpea Salad
A protein-packed chickpea salad adds heartiness and pairs well with Mediterranean flavors. -
Sweet Potato Wedges
Roasted sweet potato wedges offer natural sweetness that complements savory dishes beautifully.
Common Mistakes to Avoid
Cooking a perfect Baked Zucchini, Spinach, and Feta Casserole can be easy, but some common mistakes can lead to subpar results. Here are some pitfalls to watch out for:
- Overcooking the Vegetables: If you cook the zucchini and spinach too long, they may become mushy. Sauté them just until the spinach wilts and the squash is tender.
- Skipping the Drain Step: Not draining excess moisture from the cooked veggies can lead to a watery casserole. Make sure to drain well after cooking to keep it firm.
- Ignoring Ingredient Temperature: Using cold eggs or cheese can impact how well they blend into the mixture. Let these ingredients sit at room temperature before using them.
- Not Seasoning Enough: Failing to season adequately can make your casserole bland. Season each layer, including the vegetables and the egg mixture, for a flavor-packed dish.
- Using Low-Quality Cheese: Cheap cheese often does not melt well and can affect texture. Opt for good quality feta and parmesan for best results.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- The casserole will last for up to 3 days in the fridge.
Freezing Baked Zucchini, Spinach, and Feta Casserole
- Freeze in a freezer-safe container or wrap tightly with plastic wrap.
- It can be frozen for up to 3 months.
Reheating Baked Zucchini, Spinach, and Feta Casserole
- Oven: Preheat to 350°F (175°C). Cover with foil and heat for about 20 minutes or until warmed through.
- Microwave: Heat individual portions on high for 1-2 minutes until hot. Stir halfway through heating.
- Stovetop: Warm in a skillet over low heat, stirring occasionally until heated through.
Frequently Asked Questions
If you’re curious about making this Baked Zucchini, Spinach, and Feta Casserole or have specific questions, here are some frequently asked questions:
Can I use other cheeses in the Baked Zucchini, Spinach, and Feta Casserole?
You can substitute feta with goat cheese or ricotta if you prefer a different flavor profile. Adjust based on your taste preference.
How do I make this casserole gluten-free?
To make it gluten-free, simply replace whole-wheat panko with gluten-free breadcrumbs or omit them entirely.
Can I add more vegetables to the casserole?
Absolutely! Feel free to add bell peppers, mushrooms, or diced tomatoes for additional flavor and nutrition.
Is this casserole suitable for meal prep?
Yes! This Baked Zucchini, Spinach, and Feta Casserole is great for meal prep. Just store it properly in portions for easy reheating during busy weekdays.
How spicy is this dish?
This recipe is not spicy by default but you can add red pepper flakes or jalapeños if you want some heat!
Final Thoughts
This Baked Zucchini, Spinach, and Feta Casserole is a delightful dish that combines healthy veggies with rich flavors. It’s versatile enough for any occasion—be it dinner or meal prep. You can customize it by adding your favorite herbs or swapping out vegetables based on your preferences. Give it a try; your taste buds will thank you!
Baked Zucchini, Spinach, and Feta Casserole
Baked Zucchini, Spinach, and Feta Casserole is a delightful dish that merges wholesome ingredients into a nutritious and satisfying meal. This casserole is an excellent choice for family dinners or potlucks, packed with fresh vegetables and creamy feta cheese for a savory flavor profile that everyone will love. With its simple preparation process, this recipe is perfect for busy weeknights, making it a reliable go-to for any occasion.
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Total Time: 45 minutes
- Yield: Serves approximately eight people 1x
- Category: Main
- Method: Baking
- Cuisine: Mediterranean
Ingredients
- 2 tablespoons olive oil
- 3 cups baby spinach
- 2 small zucchini, diced
- 2 small yellow squash, diced (or additional zucchini)
- 1/4 cup fat-free feta cheese crumbles
- 1/4 cup low-fat grated parmesan cheese
- 1/4 cup whole-wheat panko breadcrumbs
- 2 egg whites
- 1/2 teaspoon kosher salt
- 2 teaspoons garlic powder
- 1/2 teaspoon ground black pepper
- 1 teaspoon dried basil
Instructions
- Preheat your oven to 400°F (200°C) and spray a 9 x 13 inch casserole dish with non-stick spray.
- In a skillet, heat olive oil over medium heat. Add spinach, zucchini, and yellow squash; sauté until the spinach wilts and squash is tender (about 5 minutes). Drain any excess liquid.
- In a mixing bowl, combine the sautéed vegetables with feta cheese, parmesan cheese, panko breadcrumbs, egg whites, salt, garlic powder, black pepper, and basil. Mix until well combined.
- Spread the mixture evenly in the prepared casserole dish and bake for 30 to 40 minutes or until golden brown on top. Allow to cool slightly before serving.
Nutrition
- Serving Size: 1 serving
- Calories: 155
- Sugar: 2g
- Sodium: 220mg
- Fat: 7g
- Saturated Fat: 2g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 3g
- Protein: 10g
- Cholesterol: 5mg