Frozen key lime pie

1 9 inch graham cracker crust
1 14oz can sweetened condensed milk
1 6oz can frozen limeade
2 cups whipping cream
green food coloring

In a medium bowl, mix together the condensed milk, limeade, and whipping cream. Add a few drops (I did 5) of green food coloring. Pour into pie crust and freeze until you're ready to serve.