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.