Pumpkin Crumb Squares

CRUST
1 18-1/2 ounce yellow cake mix
1 egg
1/2 cup butter or margarine, melted

Spray a 13x9-inch baking pan with non-stick vegetable spray. Remove 1 cup of the cake mix; set aside.

In a medium bowl, combine the remaining cake mix, egg, and butter; blend thoroughly. Press onto the bottom of the prepared baking pan.

PUMPKIN FILLING

1 16-ounce can pumpkin
3 eggs
1/2 cup sugar
1/4 cup firmly packed brown sugar
1 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg

In a medium bowl, combine all ingredients, beating until well blended. Pour over the prepared crust.

CRUMB TOPPING

1 cup reserved cake mix
1/2 cup sugar
1/2 cup chopped nuts
3 tablespoons butter or margarine

In a medium bowl, combine all ingredients, blending until mixture is crumbly. Sprinkle over pumpkin filling.

Bake 50 to 55 minutes or until filling is set. Cool in pan on a wire rack. Cut into squares to serve; top with a dollop of whipped cream, if desired.