1 graham cracker pie crust
1 (6 oz.) can frozen limeade concentrate
Few drops green food coloring
3 c. (8 oz.) Cool Whip
1 can sweetened condensed milk
3/4 c. sour cream

In large bowl combine limeade (undiluted and frozen) sweetened condensed milk; add sour cream and food coloring. Stir until well blended. Fold in thawed Cool Whip. Spoon filling into crust, swirl top. Chill until set, about 6 hours. Garnish with Cool Whip, kiwi fruit or lime slices.