In a bowl mash the bananas with a fork. Add the cocoa powder, cinnamon, vanilla, and peanut butter. (At this point if you decide you want them sweeter, you can add 2 tablespoons of honey or maple syrup (or a 1/2 tsp liquid stevia).
Place the batter in an 8x8 pan lined with parchment paper.
Sprinkle the hemp seeds, chocolate chips, chia seeds and walnuts on the top and press down into the batter slightly.
Place them in the oven and bake for 20 minutes. Cool then remove from pan and cut into squares. I store mine in the fridge!They are yummy!