Easy Chicken Zucchini Casserole Recipe

July 25, 2025

This Easy Chicken Zucchini Casserole is a yummy mix of tender chicken, fresh zucchini, and melty cheese. It’s simple to make, great for a cozy dinner, and healthy too!

I love how this dish comes together quickly; just mix everything in a baking dish and let the oven do the work. Plus, it’s a fun way to sneak in those veggies! 🥒

Key Ingredients & Substitutions

Zucchini: Fresh zucchini adds great texture and moisture. If you don’t have zucchini, yellow squash works well, or you can even use spinach for a different twist.

Cooked Chicken: This recipe shines with leftover rotisserie chicken. If you’re vegetarian, try chickpeas or tofu instead. They can absorb the flavors well!

Cheese: Cheddar cheese is perfect for that gooey goodness, but a mix of mozzarella can make it even creamier. If you’re lactose-intolerant, use dairy-free cheese alternatives.

Cream of Chicken Soup: For a lighter version, use homemade white sauce or substitute with vegetable broth and a tablespoon of flour to thicken. Cream of mushroom soup also adds a nice flavor.

How Can You Ensure Your Casserole is Creamy and Delicious?

Mixing the creamy ingredients properly sets the foundation for a great casserole. Make sure these steps are followed closely:

  • Combine the wet ingredients (soup, sour cream, and mayo) until smooth to avoid lumps.
  • Gently fold in zucchini and chicken to keep the pieces intact and well-coated.
  • Spread the mixture evenly in your dish to ensure an even bake, which helps the cheese melt perfectly on top.

Don’t rush the baking! Let it cook until bubbly and golden for that perfect crust.

Easy Chicken Zucchini Casserole Recipe

Easy Chicken Zucchini Casserole

Ingredients:

  • 2 medium zucchinis, sliced into thin rounds or half moons
  • 2 cups cooked chicken breast, chopped into bite-size pieces
  • 1 cup shredded cheddar cheese (or a mix of cheddar and mozzarella)
  • 1 cup grated Parmesan cheese
  • 1 can (10.5 oz) cream of chicken soup (or homemade cream sauce)
  • 1/2 cup sour cream
  • 1/2 cup mayonnaise
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1 teaspoon dried parsley
  • Salt and pepper to taste
  • Fresh parsley or thyme for garnish (optional)

How Much Time Will You Need?

This dish will take about 10 minutes to prepare and 30 minutes to bake, for a total of around 40 minutes from start to delicious finish. Perfect for a busy evening!

Step-by-Step Instructions:

1. Preheat the Oven:

Start by preheating your oven to 375°F (190°C). Lightly grease a medium-sized casserole dish with cooking spray or oil to prevent sticking.

2. Create the Sauce:

In a large mixing bowl, combine the cream of chicken soup, sour cream, mayonnaise, garlic powder, onion powder, dried parsley, salt, and pepper. Mix everything together until smooth and creamy.

3. Add Chicken and Zucchini:

Gently fold in the chopped cooked chicken and sliced zucchini into the bowl with the sauce. Make sure everything is well-coated for maximum flavor!

4. Transfer to Casserole Dish:

Pour your chicken and zucchini mixture into the greased casserole dish and spread it evenly using a spatula.

5. Top with Cheese:

Sprinkle the shredded cheddar cheese and grated Parmesan evenly over the top of the mixture, creating a cheesy layer that will become beautifully golden as it bakes.

6. Bake:

Place the casserole in the preheated oven and bake uncovered for about 25 to 30 minutes. You’ll know it’s ready when the casserole is bubbly and the cheese is melted and golden.

7. Cool and Garnish:

Once it’s out of the oven, let the casserole cool for about 5 minutes. If you’d like, sprinkle some fresh parsley or thyme on top for a pop of color and flavor before serving.

Enjoy your comforting and cheesy chicken zucchini casserole! It’s sure to be a hit with family and friends alike! 😊

Easy Chicken Zucchini Casserole Recipe

FAQ for Easy Chicken Zucchini Casserole

Can I Use Frozen Zucchini for This Recipe?

Yes, you can use frozen zucchini! Just make sure to thaw and drain the excess water before mixing it into the casserole. This helps prevent the dish from becoming too watery!

What Can I Substitute for Mayonnaise?

If you’re not a fan of mayonnaise, you can easily substitute it with Greek yogurt for a healthier twist. It will add creaminess and a hint of tanginess to the casserole.

How Long Do Leftovers Last?

Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, warm it gently in the microwave or in the oven until heated through.

Can I Add Other Vegetables?

Absolutely! Feel free to add other vegetables like bell peppers, mushrooms, or spinach for extra nutrition and flavor. Just make sure to chop them into small pieces for even cooking.

About the author
Emma

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