Watergate Salad - cooking recipe

Ingredients

1 (9 oz.) container Cool Whip
1 (3 oz.) pkg. pistachio instant pudding (dry)
1/2 c. miniature marshmallows
1/2 c. chopped walnuts
1 (No. 2) can crushed pineapple (not drained)

Preparation

Mix together; let set for several hours or overnight.