Preheat oven to 375 degrees.
In a large bowl, mash up the bananas. Whisk in the eggs, maple syrup, peanut butter, almond milk, and vanilla extract.
Add the oats, cinnamon, baking powder, and salt and mix until everything is combined,
Pour the batter into an 8x8 inch baking dish that has been sprayed with cooking spray.
Bake for 30 minutes. Let cool for at least 10 minutes before cutting it.