The night before: Grab a medium bowl and mash the banana until smooth. Now stir in the chia, oats, cinnamon, milk, and water until combined. Cover and refrigerate overnight.
In the morning: Scoop the oat mixture into a medium pot. Increase heat to medium-high and bring to a simmer. Reduce heat immediately to medium-low, and stir frequently until heated throughout and thickened. At the end of cooking, stir in flax, if using.
Pour oats into bowl. Garnish with your desired toppings.
Tips:
The ground flax is optional because it creates a bit of a strange texture (almost like a flax egg) in this oatmeal. If you think you will mind it, just leave it out or sprinkle some ground flax on top instead.
