Crush the entire package of Oreos. When the cookies are fine crumbs, transfer them to a large bowl and mix in melted butter. Press the cookie mixture into a 9x13-inch pan and refrigerate while preparing the remaining layers.
Next, beat together powdered sugar, cream cheese, and 1 cup of whipped topping. Spread over cookie layer.
For the next layer, mix together the pudding mix, milk, and another cup of whipped topping. Spread over the cream cheese layer.
Layer the sliced strawberries on top and spread the remaining whipped topping on top.