Pistachio Salad
["1 pkg. pistachio pudding (instant)", "1 can crushed pineapple", "1 pkg. marshmallows", "1 (9 oz.) carton Cool Whip", "nuts (optional)"]
["Prepare pudding according to package directions.", "Stir in next three ingredients.", "Sprinkle nuts on top, if desired."]
["pistachio pudding", "pineapple", "marshmallows", "nuts"]