Baked Zucchini, Spinach, and Feta Casserole
Baked Zucchini, Spinach, and Feta Casserole is a delightful dish that transforms simple ingredients into a comforting meal. This casserole is perfect for family dinners, potlucks, or meal prep throughout the week. Packed with nutritious veggies and creamy feta, it offers a burst of flavor in every bite. Plus, it’s easy to make and will impress both kids and adults alike!
Why You’ll Love This Recipe
- Nutritious and Delicious: This casserole is loaded with vitamins from zucchini and spinach, making it a healthy choice.
- Cheesy Goodness: The feta cheese adds a rich flavor while keeping it light, perfect for cheese lovers.
- Versatile Dish: Serve it as a main course or side dish—it’s great for any occasion!
- Quick Preparation: With just 10 minutes of prep time, you can have this dish ready to bake in no time.
- Kid-Friendly: The cheesy and savory flavors make it appealing to children, encouraging them to enjoy their veggies.
Tools and Preparation
To create the Baked Zucchini, Spinach, and Feta Casserole efficiently, having the right tools on hand is essential.
Essential Tools and Equipment
- Casserole dish (9 x 13 inch)
- Large skillet
- Mixing bowl
- Non-stick cooking spray
- Measuring cups and spoons
Importance of Each Tool
- Casserole dish: A sturdy dish ensures even cooking and makes serving easy.
- Large skillet: Ideal for sautéing vegetables quickly without overcrowding.
- Mixing bowl: Allows for thorough mixing of ingredients before baking.

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)
Toppings and Binding Agents
- 1/4 cup whole-wheat panko breadcrumbs
- 2 egg whites
Seasonings
- 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 the Vegetables
In a large skillet over medium heat:
1. Add the olive oil.
2. Once hot, add the spinach, zucchini, and yellow squash.
3. Cook for about 5 minutes until the spinach wilts and the squash softens.
4. Drain off any excess liquid from the skillet.
Step 3: Combine Ingredients
In a large mixing bowl:
1. Place the drained vegetable mixture.
2. Add in all remaining ingredients – feta cheese crumbles, parmesan cheese, panko breadcrumbs, egg whites, salt, garlic powder, black pepper, and dried basil leaves.
3. Mix until thoroughly combined.
Step 4: Bake the Casserole
Spread the mixture evenly into the prepared casserole dish. Bake for 30 to 40 minutes or until golden brown on top. Once baked, let it cool slightly before serving.
Now you have a delicious Baked Zucchini, Spinach, and Feta Casserole ready to be enjoyed!
How to Serve Baked Zucchini, Spinach, and Feta Casserole
Serving Baked Zucchini, Spinach, and Feta Casserole can elevate your dining experience. This dish pairs well with various sides and garnishes to enhance its flavors.
As a Main Dish
- Serve it hot from the oven as a delicious main course. The hearty vegetables and cheese make it filling enough on its own.
With a Side Salad
- A crisp green salad complements the casserole perfectly. Add ingredients like cherry tomatoes and cucumbers for freshness.
Alongside Grains
- Pair it with quinoa or brown rice for added texture and nutrition. These grains absorb the casserole’s flavors beautifully.
Topped with Fresh Herbs
- Garnish with fresh basil or parsley before serving. It adds color and a burst of freshness that balances the rich flavors.
In the Company of Roasted Vegetables
- Serve alongside roasted carrots or bell peppers to create a colorful plate filled with vegetables. This adds variety in both taste and presentation.
As Leftovers
- Enjoy it cold or reheated as a quick lunch option. The flavors deepen overnight, making leftovers surprisingly delicious.
How to Perfect Baked Zucchini, Spinach, and Feta Casserole
Perfecting your Baked Zucchini, Spinach, and Feta Casserole involves simple tips to elevate your dish.
- Use fresh ingredients: Fresh zucchini and spinach enhance flavor and texture compared to frozen counterparts.
- Don’t skip draining: Make sure to drain excess liquid after cooking the veggies to prevent a soggy casserole.
- Experiment with spices: Feel free to add extra herbs or spices like oregano or red pepper flakes for an additional kick.
- Adjust baking time: Keep an eye on your casserole in the oven; baking time may vary based on your oven’s temperature accuracy.
- Use different cheeses: Mix in other cheeses like mozzarella for a different flavor profile while maintaining the creamy texture.
- Let it cool slightly: Allowing it to cool for a few minutes before serving helps set the layers together nicely.
Best Side Dishes for Baked Zucchini, Spinach, and Feta Casserole
This casserole pairs wonderfully with several side dishes that complement its flavors while adding variety to your meal.
-
Garlic Bread
A crunchy garlic bread is perfect for scooping up the casserole’s cheesy goodness. -
Roasted Potatoes
Crispy roasted potatoes provide a satisfying contrast in texture while enhancing the meal’s heartiness. -
Steamed Broccoli
Lightly steamed broccoli brings a bright green color and adds nutritional value without overpowering the main dish. -
Grilled Asparagus
The smoky flavor of grilled asparagus pairs well with the richness of the casserole, making each bite exciting. -
Quinoa Salad
A light quinoa salad with lemon vinaigrette offers refreshing acidity that balances the creaminess of the casserole. -
Stuffed Peppers
Colorful stuffed peppers filled with rice or beans create an appealing presentation alongside your baked dish. -
Cucumber Yogurt Dip
A cool cucumber yogurt dip provides a refreshing contrast that complements the warm, cheesy casserole beautifully. -
Mixed Grain Pilaf
A nutty mixed grain pilaf adds depth and complexity to your meal while ensuring you have plenty of textures on your plate.
Common Mistakes to Avoid
Cooking can be tricky, especially when trying a new recipe. Here are some common mistakes to avoid when making your Baked Zucchini, Spinach, and Feta Casserole:
-
Overcooking the Vegetables: Cooking the vegetables too long can lead to a mushy texture. Sauté just until the spinach wilts and the zucchini is tender.
-
Skipping the Drain Step: Not draining excess liquid from cooked veggies can result in a watery casserole. Always drain before mixing with other ingredients.
-
Not Using Fresh Ingredients: Stale or old ingredients can compromise flavor. Ensure your zucchini, squash, and spinach are fresh for the best taste.
-
Ignoring Seasoning Adjustments: Different brands of feta cheese can vary in saltiness. Taste your mixture before baking and adjust salt as needed.
-
Using the Wrong Baking Dish Size: Using a dish that is too small may cause overflow while baking. Stick to a 9 x 13 inch dish for perfect results.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- Keep in the refrigerator for up to 3 days.
Freezing Baked Zucchini, Spinach, and Feta Casserole
- Allow the casserole to cool completely before freezing.
- Wrap tightly in plastic wrap or use a freezer-safe container; it will last up to 2 months.
Reheating Baked Zucchini, Spinach, and Feta Casserole
- Oven: Preheat the oven to 350°F (175°C) and bake for about 20 minutes until heated through.
- Microwave: Heat individual portions on medium power for 1-2 minutes, stirring halfway through.
- Stovetop: Place in a skillet over low heat, stirring occasionally until warmed through.
Frequently Asked Questions
Here are some frequently asked questions about making this delicious casserole:
Can I use different types of cheese in the Baked Zucchini, Spinach, and Feta Casserole?
You can certainly substitute with cheeses like ricotta or goat cheese for a different flavor profile!
How do I make this casserole ahead of time?
To prepare ahead, assemble all ingredients in the dish but don’t bake it. Cover and refrigerate overnight; bake when ready.
What can I serve with Baked Zucchini, Spinach, and Feta Casserole?
This casserole pairs well with a fresh salad or crusty bread for a complete meal.
Is this recipe suitable for meal prep?
Yes! This casserole is great for meal prep as it stores well and reheats easily throughout the week.
Final Thoughts
The Baked Zucchini, Spinach, and Feta Casserole is not only flavorful but also versatile. You can customize it by adding your favorite herbs or other vegetables. Try this nutritious dish today—it’s sure to become a family favorite!
Baked Zucchini, Spinach, and Feta Casserole
Baked Zucchini, Spinach, and Feta Casserole is a delightful dish that combines wholesome ingredients into a comforting meal. This vibrant casserole is perfect for family dinners, potlucks, or as a healthy option for meal prep throughout the week. Bursting with nutritious veggies like zucchini and spinach, paired with creamy feta cheese, it strikes a balance between flavor and health. With just 10 minutes of preparation, you can whip up this delicious dish that will impress both kids and adults alike.
- Prep Time: 10 minutes
- Cook Time: 30–40 minutes
- Total Time: 0 hours
- Yield: Approximately 6 servings 1x
- Category: Main Course
- Method: Baking
- Cuisine: Mediterranean
Ingredients
- 2 tablespoons olive oil
- 3 cups baby spinach
- 2 small zucchini (diced)
- 2 small yellow squash (diced) or 2 more 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
- kosher salt
- garlic powder
- ground black pepper
- dried basil
Instructions
- Preheat the oven to 400°F (200°C). Spray a 9 x 13-inch casserole dish with non-stick cooking spray.
- In a large skillet over medium heat, add olive oil. Once hot, sauté the spinach, zucchini, and yellow squash for about 5 minutes until the spinach wilts and the squash softens. Drain any excess liquid.
- In a mixing bowl, combine the drained vegetable mixture with feta cheese, parmesan cheese, panko breadcrumbs, egg whites, salt, garlic powder, black pepper, and dried basil. Mix well.
- Spread the mixture evenly in the prepared casserole dish and bake for 30 to 40 minutes until golden brown on top.
Nutrition
- Serving Size: 1 serving
- Calories: 150
- Sugar: 3g
- Sodium: 300mg
- Fat: 7g
- Saturated Fat: 2g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 3g
- Protein: 8g
- Cholesterol: 0mg