In a mixing bowl, mash the very ripe banana until smooth. Add in the eggs, Greek yogurt, milk, avocado oil, maple syrup, and vanilla extract. Whisk together until well combined and creamy.
In a separate bowl, mix the whole rolled oats, protein powder, baking powder, and sea salt. Stir until evenly distributed.
Pour the dry ingredients into the bowl with the wet ingredients. Stir gently until just combined. If the batter is too thick, add a splash more milk until you reach your desired consistency.
Heat a non-stick skillet or griddle over medium heat. Lightly grease the surface with avocado oil to prevent sticking.
Using a ladle or measuring cup, pour the batter onto the hot skillet. Cook for 3-4 minutes or until bubbles form on the surface and the edges look set. Flip carefully with a spatula and cook for an additional 2-3 minutes on the other side, until golden brown.
Stack your pancakes on a plate and drizzle with additional maple syrup. Top with your favorite fruits, nuts, or yogurt, and enjoy your protein-packed breakfast!