Place the oats and water in a small sauce pan over high heat. Bring to a boil, reduce heat to low and let simmer, making sure nothing sticks to the bottom of the pan. As the liquid is absorbed, add apple juice to reach desired consistency. Add cinnamon and stir. After a few minutes, turn off heat and cover for a couple of minutes. Transfer to a bowl, sprinkle with chopped pecans, top with banana slices and drizzle with maple syrup.