Preheat oven to 375F and grease an 8x8 pan with nonstick spray. I also like to cut a piece of parchment to put on the bottom as a liner.
In a small bowl, combine oats, baking powder, cinnamon, nutmeg, and salt. Stir.
In a large bowl, mash bananas until completely soft.
Whisk in eggs, then stir in almond milk, maple syrup and vanilla.
Add oat mixture to wet ingredients and stir to combine.
If you want to add in walnuts, chocolate, banana coins, you can add them now.
Pour into greased dish and bake for 40-45 minutes or until golden brown.
Let cool before cutting.
Enjoy!
*See notes in recipe for storing.