Pie crust, made or bought
1 can condensed milk
1/4 c. lemon juice
1 can unsweetened crushed pineapple, drained
1 sm. container Cool Whip
1/2 c. walnuts, chopped

Mix together condensed milk, lemon juice, and pineapple; fold in Cool Whip and nuts. Put into crust. Store in refrigerator.