Watergate Salad - cooking recipe

Ingredients

1 can crushed pineapple (1 lb. 16 oz.), drained
1 can fruit cocktail (1 lb. 16 oz.), drained
1 can mandarin oranges (8 oz.), drained
1 pkg. Jell-O brand pistachio instant pudding
1 large Cool Whip (9 oz.)
1 c. miniature colored marshmallows

Preparation

Mix all ingredients in order given. Add nuts, if desired.