This cannot be good for you

 Crust:

1 stick butter, melted

1 1/2 C crushed Oreos

1/2 C flour

Bake at 350 for 10 min

Layer 1:

1 8 0z. pkg. cream cheese (softened to room temp)

1 C powdered sugar
1 C cool whip (from 8 oz tub)

Layer 2:

1 large box chocolate instant pudding, prepared according to box directions

Layer 3:
the rest of the cool whip from the 8 oz tub