Preheat oven to 350 F.
In a bowl, add mashed bananas, oats, and cinnamon and mix well to combine.
Fold in chocolate chips.
Using a tablespoon, scoop mixture into heaping tablespoons onto a greased baking sheet (makes about 15 oaties).
Bake in the preheated oven for 20 minutes.
Store in an airtight container for up to 5 days.
