Preheat oven to 350 degrees F. Line a 9x13 inch pan with heavy foil sprayed with non-stick spray.
Combine crust ingredients 6 T melted butter, cake mix (see above) and 1 egg. Mixture wil be thick and the consistancy of cookie dough. Press into prepared pan.
Combine pumpkin, 3 eggs, 1/2 c cake mix, and 5 oz can evaporated milk mix until smooth. Pour over crust.
Combine praline topping: 1/3 c oats, 1/2 c cake mix, 1/2 c brown sugar, 1/2 tsp cinnamon, 6 T butter and 1 c pecans. Sprinkle this over pumpkin filling in cake pan.
Bake at 350 degrees 30 to 35 minutes or until center is set. Remove from oven and allow to cool on a wire rack.