Pumpkin Dessert

1 18 oz. yellow cake mix
1/4 C butter, melted
1 egg
1 29 oz can pumpkin pie mix
2 eggs
2/3 C milk

1/4 C butter, chilled
1/4 C sugar
1/4 C cinnamon
nutmeg to taste

Set aside 1 C cake mix.  Combine remaining cake with butter and egg and spread in 9X13 pan.  Combine pumpkin, milk and eggs and pour of cake spread.  Combine topping and sprinkle over top.  Bake at 350 for 45 minutes.  Serve with whipped cream. 

Notes:  I like this more than pumpkin pie.  It's SO good and easy.