Kids love this.
1 pound of Oreos
1/4 cup melted margarine (not spread, but butter or margarine)
1 8 oz package cream cheese
1 cup powdered sugar
1 12 ounce package Cool Whip
1 pkg instant chocolate pudding, prepared with milk
Crush cookies, reserving 1/2 cup crumbs for topping. Mix the remainder with the 1/4 cup of melted margarine. Press into 13X9 inch pan. I put this in the freezer for 10 minutes or so, to get it to set up solid for the next step.
Blend cream cheese and powdered sugar. Add a little milk till it is spreading consistency. Spread over crumbs in pan. Spread 1/2 of the Cool Whip over the cream cheese. Pour prepared pudding over Cool Whip. Top with remaining Cool whip and sprinkle with the reserved crumbs. Refrigerate until serving.