Make dressing according to instructions, set aside. Clean the chicken of any extra fat. Slice the breast down the side to make a pocket. Combine the pineapple and stuffing in a bowl.
Put the stuffing inside the pocket of the chicken ,salt and pepper the outside of the breast and secure with poultry pins.Bake at 350 for 40-50 minutes. If you have any juice from the pineapple, put that in the bottom of the baking dish.