Preheat your oven to 375°F (190°C).
Season the chicken breasts with salt and pepper and place them in a baking dish.
In a mixing bowl, combine the Caesar dressing, sour cream, and Parmesan cheese.
Spread the mixture evenly over the chicken breasts.
Bake for 30-35 minutes, or until the chicken is fully cooked and the sauce is bubbly.
Let the chicken rest for 5 minutes before serving.