Baked Zucchini, Spinach, and Feta Casserole
This Baked Zucchini, Spinach, and Feta Casserole is a delightful dish that combines the earthy flavors of zucchini and spinach with creamy feta cheese. Perfect for family dinners or as a side to your favorite protein, this casserole is not only delicious but also packed with nutrients. Its cheesy goodness makes it a favorite among both kids and adults, ensuring everyone enjoys their veggies!
Why You’ll Love This Recipe
- Easy to Prepare: With simple ingredients and straightforward instructions, this casserole comes together quickly, making it perfect for weeknight dinners.
- Flavorful and Cheesy: The combination of feta and parmesan offers a rich taste that elevates the humble zucchini and spinach.
- Versatile Dish: Enjoy it as a main course or a side dish; it pairs beautifully with grilled meats or can be served alongside a fresh salad.
- Health-Conscious Choice: Packed with veggies and lower in fat, this dish is suitable for various dietary needs, including low-carb and vegetarian diets.
- Kid-Friendly: The cheesy flavor makes it appealing to children, encouraging them to eat more vegetables without complaints.

Tools and Preparation
To make the Baked Zucchini, Spinach, and Feta Casserole, you’ll need some essential kitchen tools. Gather these before you begin for an efficient cooking experience.
Essential Tools and Equipment
- Large skillet
- Mixing bowl
- 9 x 13 inch casserole dish
- Measuring cups and spoons
- Non-stick spray
Importance of Each Tool
- Large skillet: Ideal for sautéing vegetables quickly, ensuring they retain flavor without overcooking.
- Mixing bowl: Provides ample space for combining ingredients thoroughly before baking.
- Casserole dish: A must-have for even cooking and presentation when serving.
Ingredients
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 and Breading
- 1/4 cup feta cheese crumbles (fat-free)
- 1/4 cup parmesan cheese (low-fat, grated)
- 1/4 cup whole-wheat panko breadcrumbs
Other Ingredients
- 2 egg whites
- 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 ensure easy removal after baking.
Step 2: Sauté the Vegetables
In a large skillet:
1. Heat the olive oil over medium heat.
2. Add the baby spinach, diced zucchini, and yellow squash.
3. Cook for about 5 minutes until the spinach wilts and the squash becomes soft.
4. Drain any excess liquid from the skillet.
Step 3: Combine Ingredients
In a large mixing bowl:
1. Transfer the sautéed vegetable mixture.
2. Add all remaining ingredients including feta cheese crumbles, parmesan cheese, panko breadcrumbs, egg whites, kosher salt, garlic powder, black pepper, and dried basil leaves.
3. Mix everything well until combined.
Step 4: Bake the Casserole
- Spread the mixture evenly in your prepared casserole dish.
- Bake in the preheated oven for 30 to 40 minutes or until golden brown on top.
- Remove from oven and let cool slightly before serving.
Enjoy this flavorful Baked Zucchini, Spinach, and Feta Casserole as part of your next meal!
How to Serve Baked Zucchini, Spinach, and Feta Casserole
Serving Baked Zucchini, Spinach, and Feta Casserole can be a delightful experience. This versatile dish is perfect for various occasions and pairs well with many sides. Here are some creative serving suggestions to enhance your meal.
Family Style
- Set the casserole in the center of the table for a communal dining experience. It encourages conversation and sharing among family and friends.
Individual Portions
- Serve in individual ramekins for a more upscale presentation. This method is great for dinner parties or special occasions.
With a Side Salad
- Pair with a fresh garden salad dressed lightly with vinaigrette. This adds crunch and complements the casserole’s cheesy flavors.
Topped with Fresh Herbs
- Garnish each serving with chopped fresh herbs like parsley or basil. This adds color and freshness to each plate.
As a Breakfast Treat
- Enjoy leftovers as a hearty breakfast option. Reheat slices and serve alongside scrambled eggs for a nutritious start to your day.
How to Perfect Baked Zucchini, Spinach, and Feta Casserole
To ensure your Baked Zucchini, Spinach, and Feta Casserole turns out perfectly every time, consider these helpful tips.
- Use fresh ingredients: Fresh zucchini and spinach will provide better flavor compared to frozen options.
- Adjust seasoning: Taste your mixture before baking. Feel free to tweak salt, pepper, or herbs based on your preference.
- Don’t overcrowd the pan: Ensure there’s enough space between the veggies in the casserole dish for even cooking.
- Cool before slicing: Allow the casserole to cool slightly before cutting into it. This helps it set better and keeps portions neat.
- Experiment with cheese: Try adding different cheeses like mozzarella or goat cheese for varied flavors.
- Refrigerate leftovers properly: Store leftovers in an airtight container in the fridge. They should last for up to 3 days.
Best Side Dishes for Baked Zucchini, Spinach, and Feta Casserole
Baked Zucchini, Spinach, and Feta Casserole is delicious on its own but pairs wonderfully with various side dishes. Here are some great options to consider.
-
Garlic Bread
A classic choice! The crunchy texture complements the softness of the casserole beautifully. -
Quinoa Salad
A refreshing quinoa salad loaded with vegetables can add a nutty flavor that balances the casserole’s creaminess. -
Roasted Cherry Tomatoes
These sweet tomatoes bring brightness to your plate while enhancing the overall flavor profile of the meal. -
Steamed Broccoli
Lightly steamed broccoli adds color and nutrients without overpowering the main dish. -
Couscous Pilaf
Fluffy couscous mixed with herbs provides a light yet satisfying side that pairs well with cheesy casseroles. -
Grilled Asparagus
Simple grilled asparagus drizzled with olive oil enhances both taste and presentation on your table. -
Mixed Green Salad
A light salad with mixed greens offers freshness that contrasts nicely with the richness of the baked dish. -
Sweet Potato Wedges
Crispy sweet potato wedges add sweetness that complements the savory flavors of zucchini and feta perfectly.
Common Mistakes to Avoid
When making a Baked Zucchini, Spinach, and Feta Casserole, it’s easy to make some common mistakes. Here are a few to watch out for.
- Overcooking the Vegetables: Cooking veggies too long can lead to mushiness. Sauté them just until tender; they will continue to cook in the oven.
- Not Draining Excess Liquid: Leaving excess liquid can result in a watery casserole. Always drain vegetables after cooking to ensure the right texture.
- Skipping Seasoning: Failing to season properly can make your dish bland. Use salt, pepper, and herbs generously to enhance flavor.
- Using Low-Quality Cheese: Cheap cheese can affect taste and texture. Opt for good-quality feta and parmesan for the best results.
- Ignoring Baking Time: Overbaking or underbaking changes the dish’s texture. Keep an eye on it and bake until golden brown on top.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- The casserole will stay fresh for up to 4 days in the refrigerator.
Freezing Baked Zucchini, Spinach, and Feta Casserole
- Freeze in an airtight container or wrap tightly with plastic wrap.
- It can be stored for up to 3 months in the freezer.
Reheating Baked Zucchini, Spinach, and Feta Casserole
- Oven: Preheat to 350°F (175°C) and heat covered for about 20 minutes.
- Microwave: Heat individual portions for 1-2 minutes, checking frequently.
- Stovetop: Warm in a skillet over medium heat until heated through.
Frequently Asked Questions
Here are some common questions about Baked Zucchini, Spinach, and Feta Casserole.
Can I use other vegetables in this casserole?
Yes! Feel free to substitute with other vegetables like bell peppers or mushrooms based on your preference.
Is this recipe suitable for meal prep?
Absolutely! This casserole is perfect for meal prep as it stores well and reheats easily.
How do I make this Baked Zucchini, Spinach, and Feta Casserole gluten-free?
Simply replace whole-wheat panko with gluten-free breadcrumbs.
What pairs well with this casserole?
This dish goes great with a simple side salad or crusty bread for a complete meal.
Final Thoughts
The Baked Zucchini, Spinach, and Feta Casserole is not only delicious but also versatile. You can customize it by adding different veggies or spices. It’s a fantastic option for family dinners or meal prep that everyone will love!
Baked Zucchini, Spinach, and Feta Casserole
Baked Zucchini, Spinach, and Feta Casserole is a flavorful, nutritious dish that combines the fresh tastes of zucchini and spinach with creamy feta cheese. This versatile casserole is perfect for family dinners or as a side dish to your favorite proteins. With its cheesy goodness, it appeals to both kids and adults alike, making vegetables more enjoyable for everyone. Quick to prepare and packed with wholesome ingredients, this dish is not only delicious but also a great way to sneak in more veggies into your meals. Serve it hot and watch it disappear from the table!
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: Serves 8
- Category: Dinner
- Method: Baking
- Cuisine: Mediterranean
Ingredients
- 2 tablespoons olive oil
- 3 cups baby spinach
- 2 small zucchini, diced
- 2 small yellow squash, diced (or 2 additional zucchini)
- 1/4 cup fat-free feta cheese
- 1/4 cup low-fat grated parmesan cheese
- 1/4 cup whole-wheat panko breadcrumbs
- 2 egg whites
- kosher salt
- garlic powder
- black pepper
- dried basil
Instructions
- Preheat oven to 400°F (200°C) and spray a 9 x 13 inch casserole dish with non-stick spray.
- In a large skillet over medium heat, sauté olive oil, spinach, zucchini, and yellow squash until tender (about 5 minutes). Drain excess liquid.
- In a mixing bowl, combine sautéed veggies with feta cheese, parmesan cheese, panko breadcrumbs, egg whites, salt, garlic powder, black pepper, and basil. Mix well.
- Spread the mixture into the prepared casserole dish and bake for 30-40 minutes until golden brown on top. Let cool slightly before serving.
Nutrition
- Serving Size: 1 slice (150g)
- Calories: 130
- Sugar: 2g
- Sodium: 350mg
- Fat: 6g
- Saturated Fat: 2g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 11g
- Fiber: 3g
- Protein: 10g
- Cholesterol: 30mg