1 (16 oz.) fruit cocktail, drained
1 sm. can mandarin oranges, drained
1 (20 oz.) crushed pineapple, undrained
1 sm. pkg. instant pistachio pudding (sugar-free or regular)
1 (9 oz.) container Cool Whip

Mix drained fruit cocktail, drained mandarin oranges, and undrained pineapple together. Add pudding mix. Chill 1 to 2 hours. Fold in Cool Whip and refrigerate until ready to serve.