1 (14 oz.) can sweetened condensed milk (Eagle Brand)
1/4 c. real lemon juice
1 (16 oz.) can whole berry cranberry sauce (Ocean Spray)
1 (20 oz.) can crushed pineapple, drained
1/2 c. chopped walnuts
1 (9 oz.) container Cool Whip, thawed

In large bowl, combine milk and lemon juice. Stir in cranberry sauce, pineapple and nuts. Fold in whipped topping. Spread into 9 x 9 Pyrex baking dish. Freeze until firm.