2 (8 oz.) cartons fruit flavored yogurt (Swiss style)
1 (8 oz.) carton Cool Whip
1 graham cracker pie crust

Gently fold the yogurt into the Cool Whip until they are well-mixed. Spoon the mixture into the crust. Freeze until firm (at least 4 hours). Thaw in the refrigerator 30 minutes before serving. Store in freezer. (This is a refreshing dessert, but so simple that a careful school-age child can prepare it without assistance!)