Crunchy Pumpkin Dessert (Tim ate seconds!)

1 (18.25 ounce) package yellow cake mix
1/3 cup butter, melted
1 egg

1 (29 ounce) can pumpkin
1/2 cup brown sugar
2/3 cup milk
3 eggs
2 tablespoons pumpkin pie spice

1/4 cup butter, chilled
1/2 cup white sugar
3/4 cup chopped pecans

1. Preheat oven to 350 degrees F. and lightly grease a 9 x 13 inch baking dish.
2. Set aside 1 cup of cake mix. Combine remaining cake mix with melted butter and 1 egg and mix until well blended; spread mixture in the bottom of the prepared baking dish.
3. In a large bowl combine pumpkin, brown sugar, milk, 3 eggs, and pumpkin pie spice; mix well and pour this mixture over the cake mix mixture in baking dish.
4. In a small bowl, mix reserved cake mix and sugar. Use a pastry blender to cut chilled butter into it, until the mixture resembles coarse crumbs. Sprinkle over pumpkin mixture. Sprinkle pecans over all.
5. Bake 45 to 50 minutes until top is golden.