Baked Zucchini Tomato Casserole

Highlighted under: Baking & Desserts

I absolutely love this Baked Zucchini Tomato Casserole! It’s one of those recipes that not only showcases the beauty of fresh summer vegetables, but it also comes together with minimal effort. The tender zucchini melds beautifully with the juicy tomatoes, creating a dish that feels both comforting and light. I find it perfect for weeknight dinners or as a side for any gathering. Each bite bursts with flavor, and it’s a fantastic way to sneak in some extra veggies for the family.

Margaret Hill

Created by

Margaret Hill

Last updated on 2026-01-15T15:22:18.443Z

When I first made this Baked Zucchini Tomato Casserole, I was looking for a way to use up some fresh garden vegetables. The vibrant colors and rich flavors totally won me over. The layers of zucchini and tomato not only look gorgeous but also create a wonderful harmony of taste when baked together. I learned that adding a sprinkle of Parmesan cheese on top gives it a crispy, golden finish that sets this dish apart!

As I perfected this recipe, I discovered that a drizzle of olive oil before baking enhances the depth of flavor. This small touch elevates the entire dish and makes the vegetables caramelize beautifully. Trust me, serve it warm out of the oven, and you’ll be amazed at how quickly it disappears!

Why You Will Love This Recipe

  • Vibrant layers of fresh vegetables that are visually appealing
  • A perfect balance of flavors with a touch of cheesiness
  • Great for meal prep or a hearty side dish

Layering the Vegetables

When layering the zucchini and tomatoes, aim for about half an inch in thickness for each slice. This thickness ensures they cook evenly while retaining some texture. A good tip is to place the zucchini on the bottom, as it tends to release moisture, which can help the tomatoes on top cook without burning.

For a visual enhancement, consider alternating the colors of the vegetables. You can add sliced bell peppers or even eggplant to the mix. This not only adds more flavor but also creates an inviting presentation that's ideal for gatherings.

Cheese Choices

Using a blend of mozzarella and Parmesan not only provides a great flavor but also creates a delightful texture. Mozzarella melts beautifully, forming a stretchy, golden top, while Parmesan adds a savory crunch. If you're looking for a lower-fat option, part-skim mozzarella can still achieve a glorious melt without compromising texture too much.

Another fun tip is to experiment with flavored cheeses, such as smoked mozzarella or a herbed goat cheese, for more depth. Just remember to adjust the seasoning accordingly, especially if the cheese you choose is salty.

Make-Ahead and Storage Tips

This casserole can be prepared ahead of time, making it a fantastic option for busy weeknights. To do this, assemble the layers and cover the dish tightly with plastic wrap or foil, refrigerating it for up to 24 hours. When you're ready to bake, just uncover and add an extra 10 minutes to the baking time to ensure it heats through thoroughly.

Leftovers can be stored in an airtight container in the refrigerator for up to three days. The flavors often deepen after a day, so don’t hesitate to enjoy it the next day! Reheat in the oven at 350°F (175°C) until warmed through and the cheese is bubbly.

Ingredients

Gather the following ingredients:

Ingredients

  • 2 medium zucchinis, sliced
  • 4 ripe tomatoes, sliced
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 3 tablespoons olive oil
  • 2 cloves garlic, minced
  • 1 teaspoon dried oregano
  • Salt and pepper to taste
  • Fresh basil for garnish

Once you have everything ready, you can start layering!

Instructions

Follow these steps to make your casserole:

Preheat the oven

Preheat your oven to 375°F (190°C).

Prepare the vegetable layers

In a large baking dish, drizzle a tablespoon of olive oil and begin layering the zucchini and tomato slices. Alternate the vegetables, slightly overlapping them, until the dish is filled.

Season the vegetables

Sprinkle minced garlic, oregano, salt, and pepper over the layered vegetables. Drizzle the remaining olive oil on top to ensure even cooking.

Add the cheese

Cover the vegetable layers with shredded mozzarella cheese, followed by an even layer of Parmesan cheese on top for a crispy finish.

Bake the casserole

Bake in the preheated oven for 35-40 minutes, or until the cheese is golden brown and the vegetables are tender.

Serve and enjoy

Remove from the oven, let it cool slightly, and garnish with fresh basil before serving.

Enjoy your delicious Baked Zucchini Tomato Casserole!

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Pro Tips

  • For an extra kick, consider adding some crushed red pepper flakes to the seasoning mix or layer in sliced bell peppers for added crunch.

Serving Suggestions

Baked Zucchini Tomato Casserole can stand alone, but it also pairs beautifully with a simple side salad or crusty bread to soak up the delicious juices. For an elegant touch, serve it alongside grilled meat or fish, which enhances the freshness of the vegetables.

For a vegetarian twist, try adding layers of cooked quinoa or rice between the vegetable layers. This not only reinforces the hearty nature of the dish but also makes it more filling, ideal for a complete meal.

Variation Ideas

Feeling adventurous? Consider adding spices like red pepper flakes or smoked paprika to the olive oil drizzle for a kick of heat. You could also incorporate other seasonal vegetables, such as spinach or kale, to increase the dish's nutritional value and texture variety.

Herbs can take this casserole to a new level of flavor. Try incorporating fresh rosemary or thyme into the layer of vegetables for an aromatic twist. Just ensure to chop them finely so the flavor is evenly distributed throughout the dish.

Questions About Recipes

→ Can I use other vegetables in this casserole?

Yes! Feel free to mix in other vegetables like bell peppers or eggplant for variety.

→ How long will leftovers last?

Store leftovers in an airtight container in the fridge for up to 3 days.

→ Can I prepare this dish ahead of time?

Absolutely! You can prepare it a day in advance and refrigerate it until you're ready to bake.

→ Is this recipe gluten-free?

Yes, if you use gluten-free cheese, this casserole can easily be made gluten-free.

Baked Zucchini Tomato Casserole

I absolutely love this Baked Zucchini Tomato Casserole! It’s one of those recipes that not only showcases the beauty of fresh summer vegetables, but it also comes together with minimal effort. The tender zucchini melds beautifully with the juicy tomatoes, creating a dish that feels both comforting and light. I find it perfect for weeknight dinners or as a side for any gathering. Each bite bursts with flavor, and it’s a fantastic way to sneak in some extra veggies for the family.

Prep Time15 minutes
Cooking Duration40 minutes
Overall Time55 minutes

Created by: Margaret Hill

Recipe Type: Baking & Desserts

Skill Level: Beginner

Final Quantity: 4 servings

What You'll Need

Ingredients

  1. 2 medium zucchinis, sliced
  2. 4 ripe tomatoes, sliced
  3. 1 cup shredded mozzarella cheese
  4. 1/2 cup grated Parmesan cheese
  5. 3 tablespoons olive oil
  6. 2 cloves garlic, minced
  7. 1 teaspoon dried oregano
  8. Salt and pepper to taste
  9. Fresh basil for garnish

How-To Steps

Step 01

Preheat your oven to 375°F (190°C).

Step 02

In a large baking dish, drizzle a tablespoon of olive oil and begin layering the zucchini and tomato slices. Alternate the vegetables, slightly overlapping them, until the dish is filled.

Step 03

Sprinkle minced garlic, oregano, salt, and pepper over the layered vegetables. Drizzle the remaining olive oil on top to ensure even cooking.

Step 04

Cover the vegetable layers with shredded mozzarella cheese, followed by an even layer of Parmesan cheese on top for a crispy finish.

Step 05

Bake in the preheated oven for 35-40 minutes, or until the cheese is golden brown and the vegetables are tender.

Step 06

Remove from the oven, let it cool slightly, and garnish with fresh basil before serving.

Extra Tips

  1. For an extra kick, consider adding some crushed red pepper flakes to the seasoning mix or layer in sliced bell peppers for added crunch.

Nutritional Breakdown (Per Serving)

  • Calories: 220 kcal
  • Total Fat: 14g
  • Saturated Fat: 6g
  • Cholesterol: 25mg
  • Sodium: 180mg
  • Total Carbohydrates: 18g
  • Dietary Fiber: 3g
  • Sugars: 5g
  • Protein: 10g