This easy Zucchini Tomato Bake is the ultimate healthy side dish! Just 6 ingredients and 30 minutes for a cheesy, herby vegetable casserole the whole family will love.

Zucchini tomato bake in white baking dish with wooden spoon.

Why You’ll Love This Recipe

Olena in the kitchen.

This zucchini tomato bake is a summertime staple that works year-round. It’s a healthy side dish that pairs with everything from baked zucchini fritters to turkey burgers.

Here are some more reasons we love it and you will too:

  • Quick and simple: Just a few minutes of prep and 25-35 minutes in the oven.
  • Versatile: Zucchini and tomato are easily adaptable to what you have on hand! Swap out the spices or cheese to experiment with different flavors.
  • Diet-friendly: Whether you need meat-free, gluten-free, or low-carb this zucchini tomato casserole can fit into your lifestyle.
  • Smells delicious: As a final bonus, according to my family, it smells like pizza while baking – even kids love it!

During the summertime my kitchen is always brimming with local zucchini and tomatoes. If you only have zucchini on hand, make healthy zucchini casserole instead.

Ingredients for Zucchini Tomato Bake

This vegetable bake requires just 6 ingredients plus cooking spray, salt and pepper! If you would like more traditional casserole, try zucchini lasagna.

Zucchini, grape tomatoes in container, parmesan cheese, dried herbs, salt and pepper in a bowl.
  • Zucchini: I used two large green zucchinis. If using small zucchini, make sure you have 2 pounds. You can use yellow squash or even a combination of the two. Any variety of summer squash works well.
  • Tomatoes: Grape tomatoes or cherry tomatoes are my favorite for this zucchini tomato casserole. However, you could also use larger varieties like vine tomatoes or heirloom tomatoes.
  • Garlic: And lots of it. This really amps up the flavor! Feel free to slightly reduce the amount, if preferred, but be sure to use only fresh garlic cloves and not from a jar or garlic powder.
  • Herbs: I used 1 teaspoon dried herbs (in total, not each) to toss with the zucchini and tomato mixture, and there are plenty of options: dill, basil, oregano, Italian seasoning. Use 1 alone or a combination of several. I also use fresh parsley or fresh basil to garnish.
  • Parmesan cheese: Freshly grated will taste best.
  • Spices: Salt and black pepper.

Substitutions and Variations

  • Sliced veggies: You can slice 1/4-inch thick rounds from the vegetables rather than chunks and layer them alternating between zucchini and tomatoes, on their sides, within the baking dish. This is great for presentation!
  • Vegetables: Yellow or green summer squash work in this recipe. Sliced onion or leeks will also pair well with the zucchini and tomato.
  • Meat: Add diced cooked chicken, sausage or any cooked protein. If adding raw, I recommend to use diced boneless skinless chicken breasts or thighs as they cook fast. If you would like to add any ground meat like ground turkey, saute it first with a few seasonings to taste.
  • Spices: To add heat add a dash of red pepper flakes. Paprika (smoked or plain) and onion powder also work well with these ingredients.
  • Cheese: Instead of Parmesan cheese, you could use mozzarella cheese or another melty cheese like cheddar.
  • Vegan: Replace the Parmesan with your favorite vegan melty cheese or just omit.
  • Bread crumbs: For a crispy topping, add 1/8 cup or more of breadcrumbs near the end of baking time.

How to Make Zucchini Tomato Bake

From prep to finish, this recipe is on the table in only 30 minutes. Perfect for those lazy hazy days of summertime!

Chopped zucchini and tomatoes with herbs and parmesan cheese in a bowl.

Preheat oven to 350 degrees F and spray an 8 x 8 or 9 x 11-inch baking dish with cooking spray.

Combine the ingredients: In a large bowl, add your chopped zucchini and tomatoes, dried herbs, grated garlic, and Parmesan cheese. Stir your cheese mixture and vegetables to combine.

Unbaked zucchini and tomatoes in baking dish.

Transfer to prepared baking dish: Bake uncovered for 25 minutes for zucchini with slight ‘bite’, or 35 minutes if you like more tender results. I recommend checking for doneness with a fork or knife after 25 minutes.

Remove from the oven: And garnish with basil or parsley and serve hot or warm.

How to Serve

This zucchini tomato bake is so versatile! It works particularly well with Italian and Mediterranean dinners as well.

Here are my suggested pairings:

How to Make Ahead and Store

Make ahead: You can prepare the chopped vegetables and ingredients in the baking dish up to 2 days before baking.

Store: Any leftovers can be stored in an airtight container in the refrigerator for up to 5 days.

Freeze: I don’t recommend it. Both zucchini and tomatoes are moisture producing vegetables and would not hold up well to being frozen.

FAQs

How do I prevent a watery bake?

Use whole grape or cherry tomatoes. If using larger tomatoes, salt the slices and let them rest on paper towels for 10 minutes to draw out excess moisture before adding to the dish.

How do I keep zucchini from getting soggy?

Do not overcook! Check for doneness at 25 minutes. Also, bake the casserole uncovered to allow steam to escape.

Can I use frozen zucchini?

I haven’t tried but I’m pretty sure you can use frozen chopped zucchini. Do not thaw and try to bake casserole at 400 degrees F for 20 minutes and play it by ear after that. Frozen zucchini need to be cooked at higher temperature and faster.

More Healthy Zucchini Recipes to Try

You may also be interested in this list of over 45 healthy zucchini recipes!

Healthy zucchini tomato bake in a casserole dish with a wooden spoon.
Zucchini tomato bake in white casserole dish.
4.98 from 177 votes

Zucchini Tomato Bake

This easy Zucchini Tomato Bake is the ultimate healthy side dish! Just 6 ingredients and 30 minutes for a cheesy, herby vegetable casserole the whole family will love.
Prep: 5 minutes
Cook: 25 minutes
Total: 30 minutes
Servings: 6 servings

Equipment

Video

Ingredients 

  • 2.5 pounds zucchini, cut into quarters (2 large)
  • 10 ounces grape tomatoes, cut in halves, or 2 large tomatoes, diced
  • 5 large garlic cloves, minced
  • 1/2 cup Parmesan cheese, grated
  • 1 teaspoon dried basil and oregano, or Italian seasoning
  • 3/4 teaspoon salt
  • 1/4 teaspoon ground black pepper
  • 1/3 cup parsley or basil, finely chopped
  • Cooking spray, I use Misto

Instructions 

  • Preheat oven to 350 degrees F and spray 8×8 or 9×11-inch baking dish with cooking spray. Set aside.
  • In a large mixing bowl, add zucchini, tomatoes, garlic, Parmesan cheese, dried herbs, salt and pepper. Stir to combine.
  • Transfer to a prepared baking dish and bake uncovered for 25 minutes for crunchy zucchini or 35 minutes if you like well cooked vegetables. I recommend checking for doneness with a fork or knife after 25 minutes.
  • Remove from the oven, garnish with basil or parsley and serve warm.
🎉 Last step! If you made this recipe, please leave a review and let us know what you think!

Notes

  • Store: Any leftovers can be stored in an airtight container in the refrigerator for up to 5 days. Do not freeze, it will be too watery and mushy upon thawing.

Nutrition

Serving: 1cup, Calories: 79kcal, Carbohydrates: 9g, Protein: 6g, Fat: 3g, Saturated Fat: 2g, Cholesterol: 6mg, Sodium: 444mg, Fiber: 3g, Sugar: 6g

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this recipe?Mention @ifoodreal or tag #ifoodreal!
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About Olena

Welcome! I grew up in Ukraine watching my grandma cook with simple ingredients. I have spent the last 14 years making it my mission to help you cook quick and easy meals for your family!

Comments

  1. 5 stars
    I did not know what to do with all this zucchini in my garden so i tried this recipe one night. It was delicious. I have one in the oven right now. I added chicken and bacon bits omg its gonna be good!

  2. 4 stars
    I made it with and w/o the Parmesan, both were good, so I removed the Parmesan from the receipt and replaced it with Eggplant.
    How much (g) is a cup anyway?

  3. 5 stars
    This is my 3rd year making this. I make it at least 4 times every summer. I do add mushrooms and sometimes a little red onion. My husband Can’t wait for me to make it. thanks for a great recipe.

    1. I’m so glad one of ifoodreal’s recipes became your family’s staple! And yes, husbands are really good at waiting for the wives to cook smth yummy.:)

  4. 5 stars
    I came across this recipe because I had a bunch of zucchini to use up and was thrilled to find I already had all of the ingredients for this. Super easy, light and healthy! Definitely a keeper and will make again. I used a tsp. of Bragg’s organic Sprinkle for the seasoning. Thanks for the great recipe!

  5. 5 stars
    I’ve had this on one of my Pinterest boards forever, and I stumbled back upon it while I was looking for something to make with all the zucchini in our weekly farm box. I also made the rosemary chicken that you mentioned in the same post. The veggies are not quite done yet. but everything smells amazing! I can’t wait until it’s all finished! I just wanted to say thank you for sharing your cooking ideas/ recipes.

    1. You are welcome, Lori! I wish my farm box was overflowing with zucchini already. We just got radishes in haha.

4.98 from 177 votes (39 ratings without comment)

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