Easy Key Lime Pie
["1 graham cracker pie crust", "1 (14 oz.) can sweetened condensed milk", "1/2 c. lime juice", "1 (8 oz.) container Cool Whip"]
["Mix milk and lime juice. Add Cool Whip. Mix well. Pour into pie crust. Chill for 2 to 3 hours."]
["graham cracker pie crust", "condensed milk", "lime juice"]