1 can crushed pineapple
1 pkg. lime jello
2 c. mini marshmallows
1 pkg. butter mints crushed
1 - 9 oz. carton cool whip

Mix pineapple, jello, and marshmallows. Refrigerate 6 to 8 hours then add mints and cool whip. Place in a 9 x 13 pan and freeze.