01 - Preheat oven to 375°F (190°C).
02 - Pat chicken breasts dry with paper towels and arrange in a greased 9x13-inch baking dish.
03 - In a medium bowl, blend Caesar dressing, sour cream, garlic powder, salt, and black pepper until fully incorporated.
04 - Spread the prepared sauce evenly over each chicken breast.
05 - Evenly sprinkle grated parmesan cheese over the sauced chicken.
06 - Bake uncovered for 25 to 30 minutes until the chicken reaches an internal temperature of 165°F (74°C).
07 - Remove from oven, let rest for 5 minutes, then garnish with chopped fresh parsley.
08 - Serve hot, paired with your chosen sides.