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Chicken Zucchini Casserole

This Chicken Zucchini Casserole is a creamy, cheesy baked dinner made with tender chicken, fresh zucchini, rich sauce, and melted cheese. Perfect for healthy chicken recipes, easy weeknight meals, and comforting family dinners.
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Prep Time 20 minutes
Cook Time 30 minutes
Servings: 6
Ingredients Method Notes

Ingredients
  

  • Main Ingredients
  • 3 cups cooked chicken shredded or diced
  • 3 medium zucchini sliced
  • 1 tbsp olive oil
  • 1 small onion diced
  • 2 garlic cloves minced
  • 1 tsp Italian seasoning
  • Salt and black pepper to taste
  • Creamy Sauce
  • 1 cup sour cream
  • 1 can cream of chicken soup
  • ½ cup Parmesan cheese
  • 1½ cups shredded mozzarella cheese
  • Topping
  • ½ cup breadcrumbs
  • 2 tbsp melted butter
  • Extra Parmesan cheese

Method
 

  1. Preheat oven to 375°F (190°C). Grease a baking dish lightly.
  2. Heat olive oil in a skillet over medium heat.
  3. Cook zucchini and onion for 4–5 minutes until slightly softened.
  4. Add garlic and cook for 1 minute. Remove from heat.
  5. In a large bowl, combine sour cream, cream of chicken soup, Parmesan cheese, Italian seasoning, salt, and pepper.
  6. Fold in cooked chicken and zucchini mixture.
  7. Spread mixture evenly into prepared baking dish.
  8. Top with mozzarella cheese.
  9. Mix breadcrumbs with melted butter and sprinkle over casserole.
  10. Add extra Parmesan cheese if desired.
  11. Bake uncovered for 25–30 minutes until bubbly and golden brown.
  12. Let casserole rest 5 minutes before serving.

Notes

  • Rotisserie chicken works great for this recipe.
  • Slightly cooking zucchini first helps reduce excess moisture.
  • Skip breadcrumbs for a low-carb version.
  • Store leftovers refrigerated up to 4 days.
  • Great option for chicken zucchini bake meal prep dinners.