Watergate Salad - cooking recipe

Ingredients

1 large can crushed pineapple (unsweetened in own juice)
1 pkg. pistachio nut pudding mix
1 c. marshmallows
1 small carton Cool Whip
nuts (if desired)

Preparation

Mix pudding mix with undrained pineapple.
Stir in remaining ingredients.
Refrigerate overnight.