1. Pour milk into large bowl. Stir in green food color. Add pudding mixes. Beat with wire whisk for 2 minutes or until well blended. Let stand 5 minutes. Gently stir in whipped topping. 2.Layer crushed cookies and pudding mixture in 3-quart bowl, beginning and ending with crushed cookies. 3.Refrigerate 1 hour or until ready to serve. Garnish as desired with shamrock candies.