There is something especially comforting about a warm, cheesy casserole fresh from the oven.

Rotisserie Chicken & Zucchini Casserole: The Easy, Cheesy Family Dinner Everyone Will Want Again

There is something especially comforting about a warm, cheesy casserole fresh from the oven. 

The bubbling cheese, tender vegetables, savory chicken, and rich tomato sauce come together to create a meal that feels homemade without requiring hours in the kitchen.

If you’re looking for a simple dinner that uses everyday ingredients, this Rotisserie Chicken & Zucchini Casserole deserves a place in your weekly meal rotation.

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Made with shredded rotisserie chicken, fresh zucchini, juicy cherry tomatoes, marinara sauce, mozzarella, Parmesan, and fragrant Italian herbs, this recipe combines classic Italian-inspired flavors in one baking dish.

The best part is that the chicken is already cooked, which significantly reduces preparation time.

You only need to slice the vegetables, prepare a quick garlic mixture, layer everything together, and let the oven do the rest.

Whether you’re feeding a busy family, preparing a comforting weeknight dinner, or looking for a creative way to use leftover chicken, this casserole is an excellent choice.

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Why You’ll Love This Rotisserie Chicken & Zucchini Casserole

This recipe has several qualities that make it particularly appealing for home cooks.

First, it saves time. Using precooked rotisserie chicken eliminates the need to cook raw chicken separately.

Second, zucchini provides a tender texture and mild flavor that pairs beautifully with tomato sauce and melted cheese.

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Third, the combination of mozzarella and Parmesan creates a deliciously cheesy topping.

Mozzarella melts into a soft, stretchy layer, while Parmesan adds a savory, slightly nutty flavor.

Another advantage is that this casserole is easy to customize.

You can add mushrooms, spinach, bell peppers, or different herbs depending on what you have available.

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And because everything bakes in one dish, cleanup is relatively simple.

50 minutes

4 servings

Easy

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Ingredients

You’ll need the following ingredients to prepare this delicious casserole.

Main Ingredients

• 2 cups cooked rotisserie chicken, shredded

• 3 medium zucchinis, thinly sliced

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• 1 cup cherry tomatoes, halved

• 1 cup mozzarella cheese, shredded

• ½ cup Parmesan cheese, grated

• 1 cup marinara sauce

• 2 tablespoons olive oil

• 2 cloves garlic, minced

• ½ teaspoon salt

• ½ teaspoon freshly ground black pepper

• ½ teaspoon Italian seasoning

• Fresh basil leaves for garnish

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Optional Additions

For extra flavor or variety, consider adding chopped spinach, sautéed mushrooms, diced bell peppers, red pepper flakes, or a small amount of ricotta cheese.

These additions are optional. The original combination is already flavorful and satisfying.

How to Make Rotisserie Chicken & Zucchini Casserole

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Step 1: Preheat the oven

Preheat your oven to 375°F (190°C).

Lightly grease a medium baking dish, approximately 8 × 8 inches or a similar capacity, with a small amount of olive oil.

Set it aside while preparing the ingredients.

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Step 2: Prepare the zucchini

Wash the zucchinis thoroughly and trim the ends.

Slice them into rounds approximately ¼ inch thick.

Try to keep the slices relatively uniform so they cook evenly.

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Zucchini contains a considerable amount of water, which can sometimes make casseroles watery.

For a firmer result, sprinkle the slices lightly with some of the measured salt and let them rest for 10–15 minutes.