1 (3 1/2 oz.) box pistachio pudding pie filling
1 (20 oz.) can crushed pineapple
1 sm. bag of sm. marshmallows
1 sm. container Cool Whip

In a medium size serving bowl pour pistachio pudding pie filling in the bowl. Then pour pineapple on top of it juice and all. Then stir the whole container of Cool Whip in with dry pudding mix and pineapple. Then while still stirring, drop all the little marshmallows in. Combine well. Chill.