1 (15 oz.) can condensed milk
Juice of 2 lemons
1 (8 1/4 oz.) crushed pineapple, drained
1 (22 oz.) can cherry pie filling
2 c. prepared whipped topping

Combine first 4 ingredients and fold in prepared topping. Pour into a 13 x 9 x 2 inch pan, cover and freeze.