I got this recipe from my friend, Heidi. It's a Pampered Chef recipe.
1 container of frozen whipped topping thawed
1 cup sour cream
1 package (3.4 oz) vanilla instant pudding
3 medium bananas - sliced
Combine whipped topping and sour cram until blended. Add pudding mix, wisk or stir until mixture is well blended and smooth. Spread half of the filling over crust. Slice bananas and arrange over filling. Spread remaining filling over bananas. Keep refrigerated.