Grease the bottom only of a 13x9x2 inch pan. Reserve 1 cup
cake mix for topping. Combine remaining cake mix, melted
butter, and 1 egg. Press into pan to make the bottom crust.
Combine the pumpkin pie mix, 2 eggs, and milk. Beat until
smooth. Pour over crust.
Combine the reserved cake mix, sugar, cinnamon, and
margarine (not melted). Cut the butter in so it is dry and
crumbly. Sprinkle over the filling. Bake in a 350 degree oven
45-50 minutes, or until knife inserted near center comes out