Preheat oven to 375 and grease a bread pan.
Add the dry ingredients (banana flour, oat flour, baking soda + powder, salto a large bowl and combine well.
Add the remaining wet ingredients (except jellto a separate bowl and mix well to combine.
Add the wet to the dry ingredients and blend well.
Layer half of the mixture into the loaf pan. Swirl half of the jelly on top. Layer with remaining batter and jelly. Feel free to swirl in more jelly and/or peanut butter.
Layer with banana slices & sprinkle with cinnamon (optional)
Bake for 40-45 minutes or until toothpick comes out clean.
Cool completely. Slice and keep in the fridge for individually wrap and freeze.