Pumpkin Pie Dessert Squares

Crust:
1 pkg yellow cake mix
1/2 cup melted margarine
1 egg

Reserve 1 1/4 cup of cake mix for topping.  Mix and lightly press into a greased 9 x 13 pan.

Filling:
2 cups pumpkin
2 1/2 tsp pumpkin pie spice
1/2 cup brown sugar
2 eggs
2/3 cup milk

Mix until smooth.  Pour over crust.

Topping:
1 1/4 cup reserved cake mix
1/4 cup sugar
1 tsp cinnamon
1/4 cup margarine
1/2 cup oatmeal

Mix together the cake mix, sugar, cinnamon and oatmeal.  Cut in margarine with pastry blender until fine.  Sprinkle over filling.  Bake at 350 degrees for 45 to 50 minutes.