HEAT oven to 400°F. Coat baking pan with no-stick cooking spray. Combine potato flakes, Parmesan cheese, parsley flakes and garlic powder in a shallow bowl. Stir until well mixed.
COAT chicken pieces with flour; dip in Italian dressing. Coat with potato flake mixture, patting until chicken is thoroughly coated; shake off excess breading. Place in prepared pan. Bake 45 to 50 minutes or until instant-read thermometer reaches 165°F.