Preheat oven to 350F and spray a large sheet pan (I used a 18x13) with some non stick spray
In a bowl whisk the eggs and mix in the brown sugar. mix in the apple sauce, yogurt, pumpkin and vanilla.
Stir in the flour, cinnamon, pumpkin pie spice, baking soda and powder.
Pour the batter evenly out onto the sheet pan.
Top with chocolate chips, spread evenly so all bars will have chips on them.
Bake in the oven for 30-35min, you can use a toothpick to make sure they are baked through.
Let cool and then cut into 35 squares, I did 5 across and 7 down..
Bars are best stored in the fridge after day one and they will freeze well.