In a large bowl, mash the banana with a fork until mostly smooth.
Add in the eggs, protein powder, oat flour, baking powder, cinnamon, salt, and almond milk. Stir until well combined.
Heat a non-stick skillet over medium heat and add a bit of coconut oil or butter.
Pour a small amount of batter into the pan to form each pancake.
Cook for about 2–3 minutes per side, or until bubbles form on top and the bottom is golden brown.
Flip and cook the other side for another 1–2 minutes. Repeat with the remaining batter.
Serve warm with your favorite toppings.