Peel and mash the bananas. I like to do this on a plate, so they will mash evenly. Transfer them evenly between the two glass jars.
To each jar, add in 1 tablespoon of peanut butter, 1/4 teaspoon of cinnamon, 1/2 teaspoon of vanilla, and a 1/2 cup of milk. Stir well. (It doesn't have to be perfectly smooth!)
Add a 1/2 cup of rolled oats to each, and stir well. Place the lids on the jars and set them in the fridge to chill overnight, or for at least 6 hours.
When you are ready to eat, grab a jar from the fridge, remove the lid and stir well. You can add an extra splash of milk to loosen the texture, and then add a splash of maple syrup, to taste. You can eat these cold right away, or transfer to a saucepan over medium-high heat and stir for 2 to 3 minutes, until the oats are warm. (In that case, add an extra splash of water, as the oats will thicken even more.) Oats can be stored in the fridge for up to 4 days.
Notes
Nutrition information is for 1 jar. This information is automatically calculated, and is just an estimate, not a guarantee.Serve the oatmeal with extra sliced bananas on top, or a handful of walnuts or hemp seeds to make it even more filling.