1 (9 oz.) tub Cool Whip
1 pkg. pistachio instant pudding
1 (8-9 oz.) can crushed pineapple, drained
1 c. miniature marshmallows
1 c. chopped walnuts

Beat with mixer until blended the Cool Whip and pudding mix. Add and fold in pineapple, walnuts and marshmallows. Put into a 9x9-inch pan and top with a small amount of Cool Whip. Chill.