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Savory Mozzarella Zucchini Casserole


  • Total Time: 1 hour 5 minutes
  • Yield: 6-8 1x

Description

Savory Mozzarella Zucchini Casserole is a wholesome, veggie-forward bake blending ripe roma tomatoes, tender zucchini, and aromatic Italian spices. Layered with onions, a crisp breadcrumb-parmesan topping, and gooey mozzarella, this casserole delivers a harmonious balance of flavors and textures. Finished with fresh herbs, it’s perfect as a comforting main or hearty side dish for any meal.


Ingredients

Scale
  • 1 pound roma tomatoes (cut into ¼-inch slices)
  • 1 1/2 pounds zucchini (cut into ½-inch slices)
  • 1/2 teaspoon Italian spices
  • 1 1/2 tablespoons olive oil
  • 1 clove garlic, minced
  • Salt and pepper, as needed
  • Chopped fresh parsley and basil for serving
  • 1 tablespoon olive oil
  • 1/2 onion, finely chopped
  • 1/4 cup breadcrumbs
  • 2 tablespoons butter, melted
  • 1/4 cup grated parmesan cheese
  • 2/3 cup grated mozzarella cheese

Instructions

  1. Preheat oven to 375°F (190°C).
  2. Heat 1 1/2 tablespoons olive oil in a pan over medium heat.
  3. Add onions and cook until tender, about 5 minutes. Set aside.
  4. Slice tomatoes and place on paper towels for 2-3 minutes to draw out excess moisture.
  5. In a bowl, toss sliced zucchini with Italian seasoning, 1 1/2 tablespoons olive oil, garlic, salt, and pepper.
  6. Prepare a 2 1/2 quart baking dish or 9 x 13 inch pan.
  7. Alternate layers of zucchini and tomatoes in stacks and place them on their sides in the prepared dish.
  8. Cover with foil and bake for 25 minutes.
  9. In a bowl, combine cooked onions, breadcrumbs, melted butter, parmesan, and mozzarella.
  10. Remove foil, sprinkle topping evenly over the vegetables.
  11. Bake uncovered for 20 minutes until vegetables are tender and top is golden brown.
  12. Sprinkle with chopped fresh parsley and basil. Serve warm.

Notes

For a gluten-free version, substitute regular breadcrumbs with gluten-free breadcrumbs. Dairy-free cheese can be used to replace mozzarella and parmesan for a vegan option. Make ahead by assembling the casserole a day in advance and baking before serving. Store leftovers covered in the refrigerator for up to 3 days; reheat in the oven for best texture. Excess liquid can be avoided by patting tomatoes dry before layering.

  • Prep Time: 20 minutes
  • Cook Time: 45 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: Italian

Nutrition

  • Serving Size: 1/8 casserole
  • Calories: 170
  • Sugar: 5g
  • Sodium: 320mg
  • Fat: 10g
  • Saturated Fat: 4g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 13g
  • Fiber: 3g
  • Protein: 6g
  • Cholesterol: 18mg