1 large container Cool  Whip
1 large can (20 oz) crushed pineapple, drained.
1 can  sweetened condensed milk
1/2 cup lemon juice
1 cup chopped pecans
2 graham cracker pie shells
Mix pineapple and sweetened condensed milk .  Fold in cool whip until 
thoroughly combined. Add lemon juice and fold in pecans.  Pour into 
two pie shells and chill about 4 hours.