Mix oats and 1 cup of water together in a bowl, and let sit for 3 minutes.
While oatmeal is cooking, slice your banana. In a small bowl, mix together 1/4 cup of hot water and 2 tbsp. peanut butter until it forms a thin sauce.
Place sliced bananas over oatmeal. Drizzle peanut butter sauce on top, and top with chopped pecans for extra crunch (optional). Enjoy immediately.