Preheat the oven to 350 degrees and spray a 24-cup mini muffin pan or two 12-cup mini muffin pans with cooking spray.
Pour rolled oats to a blender and blend together until it is finely ground.
Add baking powder, baking soda, and salt to the blender.
Pulse for a couple of seconds then add the next ingredients.
Add eggs, mashed bananas, brown sugar, canola oil, and vanilla extract to the blender.
Blend together for about five seconds then scrape excess off the side with a spoon.
Continue to blend and scrape off the sides until the batter is smooth and all of the ingredients are incoproraye.
Add the mini chocolate chips and fold them into the batter with a spoon.
Pour the mixture into each muffin cup.
Bake the muffins for 15-17 minutes or until fully baked. (Use the toothpick test to make sure it comes out clean.)
Let them cool for about 5 minutes.