Cheesy Oven-Baked Chicken and Zucchini Skillet Casserole

This cheesy oven-baked chicken and zucchini casserole is the perfect easy low-carb dinner recipe that’s creamy, comforting, and packed with flavor. Made with rotisserie chicken, fresh zucchini, and a rich cheese blend, this healthy chicken casserole is ideal for busy weeknights or family meals.

Why You’ll Love This Cheesy Chicken Zucchini Casserole

• Low-carb & keto-friendly great for healthy eating
• Quick and easy dinner recipe ready with simple ingredients
• High-protein meal thanks to tender shredded chicken
• Creamy and cheesy comfort food without heavy effort
• Perfect for meal prep stores and reheats beautifully

Ingredients for Chicken Zucchini Casserole

• 3 cups cooked rotisserie chicken, shredded
• 3 medium zucchinis, thinly sliced
• 1 tablespoon olive oil
• 1 small onion, finely chopped
• 2 cloves garlic, minced
• 1 cup sour cream or Greek yogurt
• 1/2 cup mayonnaise
• 1 cup shredded mozzarella cheese
• 1/2 cup grated Parmesan cheese
• 1 teaspoon Italian seasoning
• 1/2 teaspoon paprika
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper

How to Make Cheesy Oven-Baked Chicken and Zucchini Casserole

1. Preheat oven to 375°F (190°C). Grease a baking dish or oven-safe skillet.
2. Sauté vegetables
   Heat olive oil in a skillet over medium heat. Add onion and cook until soft, then stir in garlic and zucchini. Cook for 5–7 minutes until slightly tender.
3. Prepare creamy mixture
   In a large bowl, combine sour cream (or Greek yogurt), mayonnaise, mozzarella, Parmesan, Italian seasoning, paprika, salt, and pepper.
4. Combine ingredients
   Add shredded rotisserie chicken and sautéed zucchini mixture to the bowl. Mix until well coated.
5. Bake casserole
   Transfer mixture to the baking dish. Top with extra mozzarella if desired. Bake for 25–30 minutes until bubbly and golden.
6. Serve & enjoy
   Let rest for 5 minutes before serving. Enjoy this creamy chicken zucchini bake warm!

Tips for the Best Chicken Zucchini Bake

• Avoid watery casserole: Lightly salt zucchini and let it drain before cooking
• Use rotisserie chicken for faster prep and extra flavor
• Swap Greek yogurt for a lighter, high-protein option
• Add red pepper flakes for a spicy kick
• Try adding mushrooms or spinach for extra veggies

Health Benefits

• Zucchini is low in carbs and rich in vitamins and antioxidants
• Chicken provides lean protein for muscle support
• Greek yogurt option adds probiotics and boosts protein
• Balanced meal perfect for keto, low-carb, and gluten-free diets