Pistachio Salad

1 pk. pistacho instant pudding
1 large can crushed pineapple(undrained)
1 cup miniature marshmallows
1/2 cup chopped nuts(optional)
1 large carton cool whip

Combine dry pudding mix, undrained pineapple, marshmallows, and nuts. Fold in cool whip.

This will set very quickly and be ready to serve.