Easy Key Lime Pie

*This recipe makes TWO pies!!*

* 2 graham cracker pie crusts
* 1 - 14 oz. can sweetened condensed milk
* 1 - 6 oz. can of frozen limeade concentrate
* 1 - 12 oz. tub of Cool Whip (I could only find 8 oz. tubs, so I used 1 1/2)
* Few drops of green food coloring

Mix all ingredients together. Stir until well mixed. Pour evenly into pie crusts & chill. (Filling will become firmer as it chills.)