Baked Zucchini Parmesan Casserole Recipe
Introduction
This Baked Zucchini Parmesan Casserole is a simple, comforting dish that combines tender zucchini with rich marinara and sharp Parmesan cheese. Perfect as a light main or a flavorful side, it’s easy to prepare and sure to satisfy.

Ingredients
- 4 medium zucchinis, sliced
- 1 ½ cups grated Parmesan cheese
- 2 cups marinara sauce
Instructions
- Step 1: Preheat your oven to 375°F (190°C). In a baking dish, spread a thin layer of marinara sauce to prevent sticking.
- Step 2: Layer sliced zucchini evenly over the sauce, then sprinkle with Parmesan cheese. Repeat the layers until all ingredients are used, finishing with a generous layer of Parmesan on top.
- Step 3: Bake the casserole in the preheated oven for 25-30 minutes, or until the cheese is melted, golden, and the sauce is bubbly around the edges.
- Step 4: Remove from oven and let it rest for 5 minutes before serving to allow the flavors to meld.
Tips & Variations
- For added flavor, sprinkle fresh basil or oregano between layers or on top before baking.
- Try adding sliced tomatoes or mozzarella cheese for a richer casserole.
- If zucchini is watery, salt the slices and let them sit for 10 minutes, then pat dry to avoid excess moisture in the dish.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave until warmed through. This casserole does not freeze well due to the zucchini’s moisture content.
How to Serve
Serve this delicious recipe with your favorite sides.
FAQs
Can I use other types of cheese instead of Parmesan?
Yes, you can substitute with Pecorino Romano, Asiago, or a blend of mozzarella and Parmesan for a different flavor and texture.
Do I need to peel the zucchini before using it?
No, peeling is not necessary. The skin adds color and nutrients. Just be sure to wash the zucchini well before slicing.
PrintBaked Zucchini Parmesan Casserole Recipe
A comforting and easy-to-make Baked Zucchini Parmesan Casserole that layers tender zucchini slices with rich marinara sauce and savory Parmesan cheese, baked to bubbly perfection for a delicious vegetarian main or side dish.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 4 servings 1x
- Category: Casserole
- Method: Baking
- Cuisine: Italian
- Diet: Vegetarian
Ingredients
Vegetables
- 4 medium zucchinis, thinly sliced
Dairy
- 1 1/2 cups grated Parmesan cheese
Sauce
- 2 cups marinara sauce
Instructions
- Prepare the zucchini: Wash and thinly slice the zucchinis evenly to ensure even cooking and layering.
- Layer the ingredients: In a baking dish, spread a thin layer of marinara sauce on the bottom. Arrange a layer of zucchini slices over the sauce, then sprinkle a generous amount of grated Parmesan cheese. Repeat the layering process—marinara, zucchini, Parmesan—until all ingredients are used, finishing with a layer of Parmesan cheese on top.
- Bake the casserole: Preheat the oven to 375°F (190°C). Place the assembled casserole in the oven and bake for about 30-35 minutes, or until the zucchini is tender and the top is golden and bubbly.
- Serve: Allow the casserole to cool for a few minutes before serving to let the layers set and flavors meld together perfectly.
Notes
- For extra flavor, sprinkle dried Italian herbs or fresh basil between the layers.
- You can substitute Parmesan with Pecorino Romano or a blend of mozzarella for a creamier texture.
- Use homemade or high-quality marinara sauce for best results.
- Cover with foil during the first half of baking to prevent excessive browning, remove foil to crisp up the top.
- This casserole can be prepared ahead of time and refrigerated before baking.
Keywords: baked zucchini casserole, zucchini parmesan, vegetarian casserole, Italian vegetable bake, marinara zucchini bake

