Creamy Raspberry Pie

Plan ahead...needs to chill

1 small pkg raspberry gelatin
1/2 c boiling water
1 c frozen vanilla yogurt
1 c fresh or frozen raspberries
1/4 c lime juice
2 c whipped topping
1 nilla wafer pie crust

*In a bowl, dissolve gelatin in boiling water. Stir in frozen yogurt until melted. Add the raspberries and lime juice. Fold in whipped topping. Spoon into crust. Refrigerate for 3 hours or until firm. Garnish with raspberries and whipped topping if desired.