In a small pot, bring milk to a boil over medium heat. Add the oats and stir to combine.
Meanwhile, thoroughly mash half the banana. If the banana is not throughly mashed, the banana flavor will be very strong in the oatmeal. Add banana to the oatmeal. Stir until banana is thoroughly incorporated into the oatmeal. Slice the other half of the banana if desired, or save it for another meal.
Once most of the liquid has been absorbed, about 5 minutes, add the cinnamon and honey. Stir to combine.
Top with sliced bananas, if desired. Top with pistachios.
Serve hot.
Recipe by The Little Chef at http://littlechefblog.com/baklava-oatmeal/