By Amy · Published: Jun 22, 2021 · Updated: Jun 22, 2021 · This post may contain affiliate links. Please read my disclosure policy 24 Comments

Zucchini Tomato Bake

Name: Zucchini Tomato Bake
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Ingredients: 4 to 5 small zucchini (about 2 pounds) (sliced ¼ inch thick); 1 pint cherry or grape tomatoes (sliced in half); 1 cup chopped yellow onion; 1 teaspoon salt (more or less, to taste); 1 teaspoon black pepper (more or less, to taste); 1 tablespoon minced fresh garlic; 1 teaspoon Italian seasoning; ¾ cup finely shredded Parmesan cheese (2.25 ounces) (divided - reserve ¼ cup for topping)

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This Zucchini Tomato Bake is a delicious way to use summer produce. The flavor combination of zucchini, tomatoes, onions, Parmesan and seasonings is absolutely amazing! Serve it as a side dish or over rice for a satisfying vegetarian meal.

Overhead view of zucchini tomato bake in an oval white baking dish.

My little summer garden is thriving and I’m so excited to be sharing one of my favorite veggie side dishes that I make with my harvest! This zucchini dish is a perfect accompaniment to just about any main course and couldn’t be easier to prepare.

Ingredients Notes

Overhead view of ingredients needed for zucchini tomato bake.

You’ll need 4 to 5 small zucchini (about 2 pounds) – ends cut off and sliced into ¼ inch rounds.
Cherry or grape tomatoes – sliced in half. You can also use chopped tomatoes.
I enjoy the flavor of yellow onion in this recipe. Please note that the chopped onions are not completely soft when this dish comes out of the oven, they’re more of a crisp-tender texture. Feel free to omit the onions, if desired.
Salt and black pepper – adjust the amounts to your liking.
Parmesan cheese – finely shredded. You can also use shredded mozzarella or Italian blend shredded cheese.
Minced fresh garlic – garlic powder can be substituted.
I love the convenience of using Italian seasoning, but if you don’t have it on-hand, fee free to use a combination of dried basil, oregano, thyme and/or rosemary (or whatever dried herb(s) you think would be delicious!).

How to Make Zucchini Tomato Bake

Sliced zucchini, tomatoes, onions, cheese and seasonings in a glass bowl.

Combine all ingredients (reserve ¼ cup of the Parmesan cheese for topping) in a large bowl.

Two images showing steps of preparing zucchini tomato bake.

Transfer to a baking dish that has been sprayed with cooking spray.
Sprinkle with the reserved Parmesan cheese. Bake for 30 to 35 minutes, or until desired tenderness of the zucchini is met.

Front closeup view of zucchini tomato bake in a white baking dish.

Enjoy!

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Zucchini Tomato Bake

An easy and delicious way to use summer produce!

5 from 5 votes

Print Pin Rate

Course: Side Dish

Cuisine: Italian

Keyword: zucchini tomato bake

Prep Time: 10 minutes

Cook Time: 35 minutes

Total Time: 45 minutes

Servings:

Author: Amy

Ingredients

4 to 5 small zucchini (about 2 pounds) sliced ¼ inch thick
1 pint cherry or grape tomatoes sliced in half
1 cup chopped yellow onion
1 teaspoon salt more or less, to taste
1 teaspoon black pepper more or less, to taste
1 tablespoon minced fresh garlic
1 teaspoon Italian seasoning
¾ cup finely shredded Parmesan cheese (2.25 ounces) divided – reserve ¼ cup for topping

Instructions

Preheat your oven to 350 degrees F. Spray a 2 quart baking dish with cooking spray. Set aside.
Reserve ¼ cup of the Parmesan cheese for topping. Place all ingredients in a large bowl (EXCEPT ¼ cup of the Parmesan cheese) and gently stir to combine.
Transfer to prepared baking dish. Sprinkle with reserved ¼ cup Parmesan cheese. Bake (uncovered) for 30 to 35 minutes or until desired tenderness of zucchini is met.

Notes

Chopped tomatoes can be substituted for cherry/grape tomatoes.
Note that chopped onions are not completely soft when this dish is removed from the oven, they’re crisp-tender. Feel free to omit onions, if desired.
Shredded mozzarella or Italian blend shredded cheese can be substituted for Parmesan (or use a combination!).
¼ to ½ teaspoon garlic powder can be used in place of minced fresh garlic.
Dried basil, oregano, thyme and/or rosemary can be substituted for Italian seasoning.