Baked Banana Oatmeal

My friend Keli emailed me this recipe and I find it to be absolutely delicious! I really enjoy baked oatmeal, but most recipes have butter or oil., so I loved the fact that this one is fat free!
NOTE: Original recipe adapted from the website "Kath Eats Real Food"

Ingredients:
2 cups old fashioned rolled oats (I used organic raw oats)
1 tsp. baking powder
1/4 tsp. kosher salt (or 1/8 tsp. table salt)
1 very ripe banana, mashed
1 1/2 cups milk (I used skim)
1 egg
1 tsp. vanilla extract
2 to 3 T. light brown sugar, divided
2 ripe bananas, sliced

Directions:
Preheat oven to 375 degrees. Spray an 8x8-inch baking dish with nonstick cooking spray.

In a medium bowl, stir together the oats, baking powder, and salt. In another bowl, whisk together the mashed banana, milk, egg, vanilla, and 1 tablespoon of the brown sugar. Add the oats to the milk mixture and stir to combine.
Spread half of the sliced bananas in a single layer in the baking dish.

Pour the oat mixture over the bananas and top with the remaining sliced bananas.

Bake for 25 minutes. Remove the oatmeal from the oven and sprinkle the remaining 1 to 2 tablespoons of brown sugar over the top. (You can add more or less to taste.)
Turn the broiler on and place the oatmeal back in the oven. Broil for 1 to 2 minutes, or until the brown sugar melts. (Keep a close eye on it because the sugar can turn black if left under the broiler too long.)

Remove the oatmeal from the oven and cut into four pieces. Serve hot.