Cheesy Baked Zucchini and Corn Casserole: A Flavorful Summer Side Dish
Cheesy Baked Zucchini and Corn Casserole: A Flavorful Summer Side Dish

Looking for a comforting and delicious side dish that highlights the best of summer vegetables? This Cheesy Baked Zucchini and Corn Casserole is the perfect choice. Packed with fresh zucchini, sweet corn, and a creamy cheese topping, this dish is sure to be a hit at any gathering. Whether you’re serving it at a family dinner or bringing it to a potluck, this casserole is easy to make and full of flavor.
Ingredients

- 4 cups zucchini, sliced
- 2 cups sweet corn kernels
- 1 cup shredded cheddar cheese
- 1/2 cup shredded mozzarella cheese
- 1/2 cup sour cream
- 1/4 cup grated Parmesan cheese
- 1/2 cup breadcrumbs
- 2 cloves garlic, minced
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 teaspoon dried oregano
- 1/2 teaspoon dried basil
- 2 tablespoons olive oil
Step-by-Step Instructions
- Preheat the Oven: Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with olive oil or non-stick spray.
- Prepare the Vegetables: In a large bowl, combine the sliced zucchini and sweet corn kernels. Add the minced garlic, salt, black pepper, dried oregano, and dried basil. Drizzle with olive oil and toss to coat evenly.
- Mix the Cheese: In a separate bowl, mix together the shredded cheddar cheese, mozzarella cheese, sour cream, and grated Parmesan cheese.
- Assemble the Casserole: Spread the zucchini and corn mixture evenly in the prepared baking dish. Pour the cheese mixture over the top and spread it out evenly. Sprinkle the breadcrumbs on top for a crispy finish.
- Bake: Place the casserole in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and the casserole is bubbly.
- Serve: Let the casserole cool for a few minutes before serving. Enjoy it warm as a side dish or a light main course.
Expert Tips
- Use Fresh Vegetables: For the best flavor, use fresh zucchini and corn. If fresh corn isn’t available, frozen corn works well too.
- Add a Crunchy Topping: For extra texture, mix the breadcrumbs with a little melted butter before sprinkling them on top.
- Customize the Cheese: Feel free to experiment with different types of cheese. A blend of cheddar, mozzarella, and Parmesan works great, but you can also try adding pepper jack for a spicy kick.
- Make Ahead: You can assemble the casserole ahead of time and refrigerate it until you’re ready to bake. Just add a few extra minutes to the baking time if it’s going into the oven cold.
FAQ
Can I use frozen zucchini?
While fresh zucchini is best, you can use frozen zucchini. Just make sure to thaw and drain it well to remove excess moisture.
Can I add other vegetables?
Absolutely! This casserole is very versatile. Try adding diced bell peppers, onions, or even cherry tomatoes for extra flavor and color.
How do I store leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave before serving.
For more delicious summer recipes, check out our Easy Baked Zucchini Casserole Recipe or our Garden Zucchini Casserole. These dishes are sure to become family favorites!

Cheesy Baked Zucchini and Corn Casserole: A Flavorful Summer Side Dish
Ingredients
Method
- Preheat the oven to 375°F (190°C). Grease a 9×13-inch baking dish with olive oil or non-stick spray.
- In a large bowl, combine the sliced zucchini and sweet corn kernels. Add the minced garlic, salt, black pepper, dried oregano, and dried basil. Drizzle with olive oil and toss to coat evenly.
- In a separate bowl, mix together the shredded cheddar cheese, mozzarella cheese, sour cream, and grated Parmesan cheese.
- Spread the zucchini and corn mixture evenly in the prepared baking dish. Pour the cheese mixture over the top and spread it out evenly. Sprinkle the breadcrumbs on top for a crispy finish.
- Place the casserole in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and the casserole is bubbly.
- Let the casserole cool for a few minutes before serving. Enjoy it warm as a side dish or a light main course.






