Name: Cheesy Zucchini Casserole
Prep time: 20 min
Cook time: 35 min
Total time: 55 min
Cuisine: American
Ingredients: Main Ingredients; 4 medium zucchini (about 6 cups sliced) – Fresh zucchini provides a tender texture and mild flavor.; 1 small onion, finely diced – Adds natural sweetness and depth.; 2 cloves garlic, minced – Brings savory flavor.; 2 tablespoons butter – Used to sauté the vegetables.; 2 cups shredded sharp cheddar cheese – Adds bold cheesy flavor.; 1 cup shredded mozzarella cheese – Creates a gooey, stretchy texture.; ½ cup grated Parmesan cheese – Adds a rich, salty finish.; ½ cup sour cream – Makes the casserole creamy.; 2 large eggs – Help bind the casserole together.; 1 teaspoon Italian seasoning – Adds classic herb flavor.; ½ teaspoon paprika – Adds subtle warmth and color.; ½ teaspoon salt – Enhances the flavors.; ¼ teaspoon black pepper – Adds gentle spice.; 1 cup panko breadcrumbs – Creates a crispy topping.; 2 tablespoons melted butter – Helps the topping brown beautifully.; 2 tablespoons grated Parmesan cheese – Adds extra crispiness and flavor.; Fresh parsley (optional) – For garnish.

Description

Make dinner easy with this Cheesy Zucchini Casserole! Loaded with tender zucchini, gooey melted cheese, and a crispy golden topping, this easy baked casserole is the perfect side dish for family dinners, potlucks, and holiday meals.

Ingredients

Scale

Main Ingredients

4 medium zucchini (about 6 cups sliced) – Fresh zucchini provides a tender texture and mild flavor.

1 small onion, finely diced – Adds natural sweetness and depth.

2 cloves garlic, minced – Brings savory flavor.

2 tablespoons butter – Used to sauté the vegetables.

Cheese Mixture

2 cups shredded sharp cheddar cheese – Adds bold cheesy flavor.

1 cup shredded mozzarella cheese – Creates a gooey, stretchy texture.

½ cup grated Parmesan cheese – Adds a rich, salty finish.

½ cup sour cream – Makes the casserole creamy.

2 large eggs – Help bind the casserole together.

Seasonings

1 teaspoon Italian seasoning – Adds classic herb flavor.

½ teaspoon paprika – Adds subtle warmth and color.

½ teaspoon salt – Enhances the flavors.

¼ teaspoon black pepper – Adds gentle spice.

Topping

1 cup panko breadcrumbs – Creates a crispy topping.

2 tablespoons melted butter – Helps the topping brown beautifully.

2 tablespoons grated Parmesan cheese – Adds extra crispiness and flavor.

Fresh parsley (optional) – For garnish.

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Instructions

Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish.
Slice the zucchini and pat dry if needed.
Sauté the onion and garlic in butter until softened.
Add the zucchini and cook for 5–6 minutes until slightly tender.
In a large bowl, combine the eggs, sour cream, cheddar, mozzarella, Parmesan, and seasonings.
Fold the cooked zucchini mixture into the cheese mixture.
Spread the mixture evenly into the prepared baking dish.
Mix the breadcrumbs, melted butter, and Parmesan, then sprinkle over the casserole.
Bake for 30–35 minutes until hot, bubbly, and golden brown.
Broil for 2–3 minutes if desired for an extra crispy topping.
Let the casserole rest for 10 minutes before serving.
Garnish with fresh parsley and enjoy warm.

Notes

Pat the zucchini dry to prevent a watery casserole.
Freshly shredded cheese melts more smoothly than pre-shredded cheese.
Let the casserole rest for 10 minutes before serving for cleaner slices.

Prep Time: 20
Cook Time: 35
Category: Dinner
Method: Baking
Cuisine: American

Nutrition

Serving Size: 1 servings
Calories: 290 calories