1 lg. size Libby's pumpkin pie mix
4 eggs, beaten well

Fold eggs into pie mix. Grease and flour 9 x 13 inch pan. Pour mix into pan. Crumble Duncan Hines spice cake mix on top of pumpkin mix. Drizzle 1 1/2 stick melted butter on top. Bake 1 hour at 350 degrees.