My mom always made this for me as a kid.
3 containers of blended yogurt, 6 oz.(I used mixed berries for this one)
1 container of frozen whipped topping, 8 oz. (I use the light stuff)
1 pre-made graham cracker crust ( I was tempted to buy the chocolate cookie crust, maybe next time)
Allow the whipped topping to thaw and then add to the yogurts. Pour into crust and place in freezer for at least 4 hours or overnight. I added some blueberries to this one.