1 (1 lb. 4 oz.) can crushed pineapple, including juice
1 (1 lb. 4 oz.) can chunk pineapple, including juice
1 (3 1/2 oz.) box dry instant pistachio pudding (or lemon)
1 (9 oz.) Cool Whip
2 c. miniature marshmallows

Mix all ingredients well and chill.