In a mixing bowl stir together the cranberry sauce, salad dressing, onion, garlic salt, and pepper.
Remove skin from chicken, if desired. Place chicken pieces in a 3-quart rectangular baking dish. Pour cranberry mixture over chicken.
Bake, uncovered, in a 350 degree F oven for 45 to 50 minutes or until chicken is tender and no longer pink. Transfer chicken to platter; skim fat from pan juices. Spoon juices over chicken. Makes 4 servings.