This “Easy Zucchini” casserole is a rustic and wholesome side dish perfect for using summer garden vegetables. Combining tender zucchini, sweet onions, and bell peppers in a savory tomato sauce and topping it all with Parmesan cheese, this recipe brings together simple ingredients for a comforting, oven-baked dish. It’s an adaptable and quick solution for busy weeknights or potluck gatherings. The mild zucchini soaks up the flavors of the tomato and cheese, making this dish both hearty and healthy.
Ingredients
- 4 zucchini (smal, sliced)
- 1 onion (medium, sliced)
- 1 green bell pepper (medium, sliced)
- 15 oz tomato sauce
- salt (to taste)
- black pepper (to taste)
- ¼ cup Parmesan cheese (grated )
Instructions
Step 1: Prep the Vegetables
- Slice the zucchini, onion, and green pepper.
Step 2: Mix the Base
- In a large bowl, combine the zucchini, onion, green pepper, and tomato sauce.
- Season with salt and pepper to taste.
Step 3: Assemble the Casserole
- Transfer the mixture to a 1½-quart casserole dish.
- Sprinkle the top with grated Parmesan cheese.
Step 4: Bake
- Bake uncovered at 350°F (175°C) for 1 hour until vegetables are tender and the top is golden.
Tips
- Use yellow squash in place of some of the zucchini for color
- Add garlic powder or Italian seasoning for extra flavor
- Substitute mozzarella for part of the Parmesan for a meltier texture
- Drain zucchini slices slightly if they seem very watery
- Serve as a side dish with grilled meats or roast chicken
- Add crushed red pepper flakes for mild heat
- Use low-sodium tomato sauce if watching salt intake
- Let rest 10 minutes before serving to firm up slices
Nutrition
Calories: 110kcalCarbohydrates: 14gProtein: 4gFat: 5gSaturated Fat: 2.5gCholesterol: 7mgSodium: 520mgPotassium: 600mgFiber: 3gSugar: 8gVitamin A: 1100IUVitamin C: 45mgCalcium: 130mgIron: 1.2mg
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