1 pkg. yellow cake mix (minus 1 c. - see below)
1/2 c. melted butter
1 egg

FILLING:

3 c. pumpkin pie mix (14 oz. can)
2 eggs
2/3 c. milk

TOPPING:

1 c. reserved cake mix (dry)
1/4 c. sugar
1 tsp. cinnamon
1/4 c. butter

Grease bottom of 9 x 13 inch pan. Reserve 1 cup cake mix. Combine cake mix, egg, and butter. Press into pan. Mix pumpkin, eggs, and milk. Pour over crust. Mix topping ingredients and sprinkle over filling. Bake at 350 degrees for 1 hour and 15 minutes. (Top is crusty!). Serve with whipped cream.