Cool Whip Pie

(Courtesy of vegetarian.about.com)

Ingredients:
8 oz. cool whip
18 oz. yogurt, any flavor
1 ready made pie crust

Directions:
Thoroughly combine the cool whip and yogurt until smooth.  Pout into pie crust and freeze until firm.  Remove from freezer approximately 20 minutes before serving.  Serve with fresh fruit if desired.