Step 1

Preheat oven to 350 degrees F.  Spray a 7x11 inch (or 9x9 inch) baking dish with cooking spray.

Step 2

In a large bowl, add the brown sugar, pumpkin puree, apple sauce, and eggs.  Whisk until smooth.

Step 3

Add the milk and vanilla.  Whisk until well combined.

Step 4

Add the oats, baking powder, cinnamon, pumpkin pie spice, and salt.  Stir until well combined.

Step 5

Pour the oat mixture into the baking dish.  Spread it out into an even layer.  Bake uncovered for 35 minutes.

Step 6

Let the oatmeal cool for 10 minutes before slicing into 8 pieces.