In a medium bowl mash the bananas with a fork until they are well mashed and make a smooth paste.
Add the applesauce and eggs and whisk to combine.
Add the buttermilk and combine.
Add the oats, wheat flour, baking powder, salt, vanilla and cinnamon. Stir until well combined.
Cook the waffles according to the manufacturer instructions for your waffle iron.
Serve with fresh banana slices, pure maple syrup, or honey.
Notes
Be sure to use cooking spray on your waffle iron if needed. There is no oil in the recipe and they tend to stick badly in my waffle maker if I don't spray it with cooking oil first.