Preheat oven to 350°F (175°C) and grease a 9x5 inch loaf pan.

In a large mixing bowl, combine mashed bananas, blended cottage cheese, eggs, egg whites, vanilla, and maple syrup until well incorporated.

In a separate bowl, whisk together oat flour, protein powder, baking soda, cinnamon, and salt.

Gently fold the dry ingredients into the wet mixture until no dry streaks remain, being careful not to over-mix.

Pour the batter into the prepared loaf pan and smooth the surface with a spatula.

Bake for 45 to 55 minutes, or until a skewer inserted into the center comes out clean.

Let the bread cool in the pan for 10 minutes before transferring to a wire rack to cool completely before slicing.