In a bowl, whisk together the flour, baking soda, baking powder, pumpkin pie spice, cinnamon, and salt
In a separate larger bowl, use mixers to beat together the pumpkin, eggs, maple syrup, brown sugar, vanilla, and olive oil
Add the dry ingredients to the wet and beat until combined
Grease a 9 X 13 dish (mine was a 3 qt) and pour the batter in, smoothing out the top
Bake at 350 degrees for 35 - 45 minutes, until a toothpick inserted comes out clean
Allow cake to cool before frosting
To make the frosting, beat together the greek yogurt, powdered sugar, and cream cheese until fluffy
Frost cooled cake and enjoy!
Store leftovers in the fridge for up to 3-4 days for best results