Better Than Pumpkin Pie

My mom made this one year for a family holiday gathering and we all loved it.  It's a great recipe for a crowd.  She found it in the Columbus Dispatch.
Better Than Pumpkin Pie 

24 ounces pumpkin, canned
1 cup granulated sugar
1 cup brown sugar, packed
2 eggs -- beaten
1 tablespoon vanilla
12 ounces evaporated milk
2 teaspoons ground cinnamon
1 teaspoon ground allspice
1 box yellow cake mix
1/2 cup butter
3/4 cup nuts -- chopped

In a large mixing  bowl, combine the pumpkin, sugars, eggs, vanilla, evaporated milk and spices, mixing well. Pour into 13"x9" pan.

Sprinkle the dry cake mix on top and pat down. Melt the butter and drizzle over the top. Sprinkle with nuts.
Bake in 350 degree oven for 45-60 minutes.
Serve warm or cooled.

Personal Note:  If you have a Pampered Chef Deep Covered Baker, you can cook this in your microwave uncovered for 20 minutes.