Preheat oven to 375 degrees F and prepare a 12 count muffin pan with baking spray; set aside
In a blender, combine the bananas, eggs, peanut butter, maple syrup, vanilla extract, baking soda and cinnamon and blend until smooth and creamy
Add in the mini chocolate chips and using a spatula mix to combine
Divide the batter into the muffin pan ¾ full (12 muffins total)
Bake for 15-16 minutes or until the muffins spring back at the touch or a tester comes out clean
Allow the muffins to cool before removing them from the muffin pan
Enjoy! For extra muffins, store them in an airtight container or freeze to enjoy later