1 (3-ounce) package sugar-free Jell-O, same flavor as yogurt
1 cup very warm water
2 containers of yogurt, individual serving size, any flavor
1 (8-ounce) container light frozen whipped topping, thawed
1 graham cracker pie crust
In a mixing bowl, stir gelatin in warm water until dissolved. Stir in yogurt and half the whipped topping. Chill until thick. Transfer mixture to pie crust and top with remaining whipped topping. Keep refrigerated until ready to serve.