Layered Pumpkin Dessert

LAYERED PUMPKIN DESSERT
CRUST
1 package of yellow cake mix - reserve 1 cup for topping
1 egg
1/2 cup butter OR margarine, melted
Mix and press into greased 9 by 13-inch pan.
FILLING
large can (29 to 30 ounces) pumpkin pie mix, NOT pumpkin puree
2 eggs
2/3 cup milk
2 teaspoons pumpkin pie seasoning
Mix and pour over crust.
TOPPING
1 cup reserved cake mix
1/4 cup brown sugar (light OR dark)
1/4 cup butter OR margarine
1/2 to 1 cup pecans, chopped (toasted, if desired)
Stir together cake mix and brown sugar. Cut in butter or margarine until crumbly. Stir in chopped pecans.- Sprinkle over filling.- Bake at 350 degrees for 45 to 50 minutes.- Serve with whipped cream or whipped topping, if desired.