2 1/2 cups Oreo or substitute cream filled cookie crumbs (Pulse in food processor)
4 ounces cream cheese
When it is mixed well, mix in remaining whipped topping (I think it is 6 ounces) I am referring to something like Cool Whip which comes in a tub, not the kind you have to beat although I see no reason for not doing the work ourselves. Spread on top of the pie.
Take extra cookie crumbs and sprinkle on top of pie. You can use chocolate chip (miniature) or chocolate sprinkles or anything that appeals to you.