In a mixing bowl, beat together eggs, vegatable oil, pumpkin and sugar.
Then mix in flour, baking soda, baking powder, salt, cinnamon, and pumpkin pie spice.
Spray a 9x13 cake pan with cooking spray and pour mixture in. Then bake at 350 degrees for 30-35 minutes or until a toothpick comes out clean.
Once cooled, top with cream cheese frosting. You could make your own frosting, however I used store bought. I also used a frosting bag and tip to add my frosting to the Pumpkin Bars and then sprinkled them with cinnamon, however you could just spread the frosting on.