Mix together cake mix, reserving one cup, 1 egg and melted butter. Press into 9 x 13 inch pan. Mix pumpkin pie mix, 2 eggs and milk. Pour over cake mixture.
Mix sugar, cinnamon, 1/4 cup butter and 1 cup cake mix until crumbly. Sprinkle over mixture. Add pecans, if desired. Bake at 350F for 45 minutes. Let cool, then serve.
Cajun Country -- New Iberia, Louisiana