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Italian Sausage and Zucchini Summer Casserole with Marinara

Savor the flavors of summer with this delightful and wholesome Italian Sausage and Zucchini Summer Casserole featuring a robust marinara sauce.
Ingredients
- 1 pound Italian sausage, casings removed
- 2 medium zucchinis, sliced
- 1 bell pepper, diced
- 1 onion, chopped
- 3 cloves garlic, minced
- 2 cups marinara sauce
- 1 teaspoon Italian seasoning
- 1/2 teaspoon red pepper flakes (optional)
- 2 cups shredded mozzarella cheese
- 1/4 cup grated Parmesan cheese
- Salt and pepper to taste
- Fresh basil for garnish
Instructions
Preheat your oven to 375°F (190°C).
In a large skillet over medium heat, cook the Italian sausage until browned and crumbled, about 5-7 minutes. Drain excess fat.
Add the chopped onion and bell pepper to the skillet and sauté until the onion is translucent, about 5 minutes.
Stir in the garlic and zucchini, cooking for an additional 3-4 minutes until the zucchini is tender.
Add marinara sauce, Italian seasoning, red pepper flakes (if using), salt, and pepper. Mix well and let simmer for 5 minutes.
In a greased 9x13 inch baking dish, layer half of the sausage mixture, then sprinkle with half of the mozzarella cheese.
Add the remaining sausage mixture and top with the remaining mozzarella and Parmesan cheese.
Cover with foil and bake for 25 minutes. Remove cover and bake for an additional 15 minutes until golden and bubbly.
Let the casserole cool for a few minutes, then garnish with fresh basil before serving.
Kitchen Tools
- Large skillet
- 9x13 inch baking dish
- Cutting board
- Knife
- Spatula
- Measuring cups and spoons
Chef's Tips
Troubleshooting
Recipe Variations
Healthy Alternatives
Serving Suggestions
Nutrition Facts
Dietary Info
Garnish Ideas
Storage
Leftover Ideas
Common Mistakes to Avoid
Frequently Asked Questions
Yes, you can prepare it in advance and store it in the fridge. It’s best to bake it just before serving.
Absolutely! Just allow it to cool completely before freezing. It can last up to 3 months in the freezer.
You can use any tomato-based sauce or even a homemade tomato sauce if you prefer.
Yes, feel free to include your favorite vegetables such as mushrooms, spinach, or eggplant.
The casserole has a bit of heat from the sausage and optional red pepper flakes, but it's generally mild.