Take a ready made graham cracker crust crush a bunch of oreo cookies or the heimishe brand bloomies (it only works with the oreo type not just any sandwich cookie). Take a container of whipped topping do not whip it pour in to crust and freeze until firm.
You might need a little bit more than a container of whip to fill the crust up. We like a lot of cookies so I put in a lot.
Cant get easier than this.