Step 1: Preheat the Oven

Preheat your oven to 375°F (190°C). Lightly grease a baking dish with cooking spray or butter to prevent sticking.

Step 2: Prepare the Caesar Mixture

In a mixing bowl, combine the Caesar dressing, sour cream (if using), Parmesan cheese, garlic powder, onion powder, black pepper, salt, and Italian seasoning. Mix well until smooth and creamy.

Step 3: Coat the Chicken Breasts

Place the chicken breasts in the greased baking dish. Evenly spread the creamy Caesar mixture over the chicken, ensuring each piece is generously coated.

Step 4: Add Mozzarella Cheese

Sprinkle shredded mozzarella cheese on top for an extra cheesy, golden-brown crust.

Step 5: Bake the Chicken

Bake in the preheated oven for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F (74°C). If you prefer a golden-brown top, broil for an additional 2-3 minutes at the end.

Step 6: Garnish and Serve

Remove the chicken from the oven and let it rest for 5 minutes before serving. Garnish with fresh parsley and serve hot!