Peel the bananas and put them into a bowl, then mash them with a fork until there are no more chunks left in the bowl.
Start preheating the oven to 350℉.
Slowly mix in the oatmeal until the ratio of bananas to oatmeal is pretty much one to one. At this point mix in a few chocolate chips.
Either by hand or with a large spoon scoop out the mix and place on a baking sheet.
Once the oven is at 350℉ put the cookies in the oven for 15 minutes. After the 15 minutes either let them cool down a bit and eat warm or put them in the fridge and enjoy them as a cool snack throughout the day.