1 (18.25 ounce) box yellow cake mix
1 cup pumpkin
1/2 cup vegetable oil
1/2 cup water
3/4 cup granulated sugar
1/2 teaspoon nutmeg
1 teaspoon cinnamon
4 eggs
1/2 cup chopped pecans (optional)

Preheat oven to 350 degrees F.

Mix cake mix, pumpkin, oil, water, sugar, nutmeg, cinnamon, and eggs together until well blended. Fold in pecans, if desired. Pour into a tube or Bundt pan. Bake for 1 hour or until a wooden pick inserted into the center comes out clean.

Dust cake with sifted confectioners' sugar or use your favorite vanilla or cream cheese frosting, melted and poured on top.