Preheat the oven to 375°F and prepare a 9x9 or 8x8 baking dish with parchment paper.
In a medium bowl, mash the bananas until smooth.
Add almond butter, maple syrup, and vanilla extract. Whisk until well combined.
Add oat flour, cacao powder, baking soda, and salt. Mix with a rubber spatula until a thick batter forms.
Fold in the chocolate chips, then spread the batter evenly in the prepared dish. Top with extra chocolate chips if desired.
Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
Let cool completely before slicing. Enjoy warm with Cool Whip, dairy-free caramel, and diced hazelnuts.