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Fresh Summer Casseroles Loaded with Garden Vegetables

fresh summer casseroles loaded with garden vegetables - featured image

A comforting and vibrant casserole featuring tender zucchini, cherry tomatoes, and other garden vegetables layered with melted cheese and a crunchy breadcrumb topping. Perfect for quick, healthy summer meals.

Ingredients

Scale
  • 2 medium zucchinis, sliced into 1/4-inch rounds
  • 1 1/2 cups cherry tomatoes, halved
  • 1 medium yellow summer squash, sliced
  • 1 medium red bell pepper, diced
  • 1 small red onion, thinly sliced
  • 3 cloves garlic, minced
  • 3 tablespoons olive oil
  • 1/4 cup fresh basil, chopped
  • 1 1/2 cups shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • Salt and freshly ground black pepper, to taste
  • 1 teaspoon dried Italian seasoning (optional)
  • 1/2 cup breadcrumbs (panko or gluten-free)

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Wash and slice the zucchini, yellow squash, cherry tomatoes, red bell pepper, and red onion evenly.
  3. Heat 1 tablespoon olive oil in a skillet over medium heat. Add sliced onion and cook for 3–4 minutes until translucent. Add minced garlic and sauté for 1 more minute until fragrant. Remove from heat.
  4. In a large bowl, combine zucchini, yellow squash, cherry tomatoes, red bell pepper, and sautéed onion and garlic. Drizzle with 2 tablespoons olive oil, season with salt, pepper, and dried Italian seasoning. Toss gently to coat.
  5. Lightly grease a 9×13-inch baking dish with olive oil. Spread half of the vegetable mixture evenly on the bottom. Sprinkle half of the mozzarella and Parmesan cheeses over the veggies. Repeat with remaining veggies and cheeses.
  6. In a small bowl, mix breadcrumbs with about 1 tablespoon olive oil and a pinch of salt. Sprinkle evenly over the casserole.
  7. Bake for 30–35 minutes until cheese is bubbly and golden and breadcrumbs are toasted with slightly crisp edges.
  8. Let the casserole rest for 5 minutes before serving. Garnish with freshly chopped basil.

Notes

Do not overcrowd the pan when sautéing onions and garlic to avoid steaming. Slice vegetables uniformly for even cooking. Toss vegetables gently with oil and seasoning to avoid bruising tomatoes. Start checking casserole at 30 minutes to prevent burning. Resting the casserole before serving helps flavors meld and makes serving easier. For vegan or gluten-free versions, substitute cheeses and breadcrumbs accordingly.

Nutrition

Keywords: summer casserole, garden vegetables, zucchini casserole, healthy casserole, easy summer recipes, vegetarian casserole, gluten-free casserole