Preheat oven to 375°F. Lightly grease a 9×13-inch baking dish.

Season chicken breasts with salt and pepper on both sides and place them in the prepared baking dish.

In a small bowl, mix Caesar dressing, sour cream, and ¾ cup of the Parmesan cheese until well combined.

Spread the mixture evenly over the chicken breasts.

Sprinkle the remaining ¼ cup of Parmesan cheese on top.

Bake for 30-35 minutes or until the chicken is cooked through (internal temperature of 165°F) and the cheese is bubbly and golden.

Garnish with fresh parsley and serve.