1 box pistachio pudding
1 can crushed pineapple with juice
1 c. miniature marshmallows
1 c. chopped nuts (optional)
1 lg. carton Cool Whip or make 2 pkg. Dream Whip

Mix together pistachio pudding and crushed pineapple. Add chopped nuts and miniature marshmallows. Fold in Cool Whip or Dream Whip. Refrigerate. Colored marshmallows really add to it.