1. Crush 15 cookies and place in a pie pan. Add melted vegan butter. Toss crumbs around to coat. Use the back of a spoon to press buttered crumbs on to pie pan to make a crust. Put the crust in the freezer while you prepare the filling.
2. In a large mixing bowl, combine the rest of the ingredients except the leftover sandwich cookies and mix thoroughly.
3. Spoon into prepared pie pan and set in the freezer for at least 1 hour. Top with additional whipped topping and garnish with additional cookies. Enjoy!
Source of recipe: I was playing around in the kitchen, and this is what I came up with.