Preheat oven to 350 °F and line a 15 x 10 jelly roll pan with parchment paper.
In a large bowl, beat together pumpkin, sugar, vegetable oil, and eggs until well blended.
In a separate bowl, sift together flour, baking soda, cinnamon, pumpkin pie spice, and salt. Add dry ingredients to the pumpkin mixture and mix well.
Spread mixture evenly into the prepared pan and bake for about 25 min.
To prepare the cream cheese frosting, combine cream cheese, butter, vanilla, powdered sugar, and enough milk to achieve a spreading consistency.
When cake is fully cooked, remove from oven, and allow to cool before frosting. Store in refrigerator.
Cut into squares and serve.
Enjoy!
