Preheat oven to 350 degrees F and grease a 9x13 baking pan. Set aside.
Mix together cake mix, pumpkin puree and eggs and spread into prepared baking pan.
Bake for 20-25 minutes or until a toothpick inserted in the center comes out clean. Remove from oven and cool completely before frosting.
Cream Cheese Frosting Directions:
Add cream cheese, butter, vanilla and powdered sugar together in a mixing bowl. Beat well until evenly combined. Slowly add half and half or milk to obtain a smooth, frosting consistency. Spread on top of cake and top with chopped pecans.