In a high-speed blender, combine the rolled oats, vanilla protein powder, egg whites, Greek yogurt, egg, half of the banana, ground cinnamon, vanilla extract, baking powder, and sea salt.
Process on high until the batter is completely smooth and has slightly thickened.
Heat a large non-stick skillet over medium-low heat and lightly coat with cooking spray if necessary.
Pour the batter into the skillet to form three or four medium pancakes, cooking for 2 to 3 minutes until bubbles form on the surface and the edges look set.
Carefully flip the pancakes and cook for another 1 to 2 minutes until they are golden brown and cooked through.
While the pancakes finish, heat the ghee in a separate small skillet over medium heat and add the remaining half of the banana, sliced into rounds.
Sauté the banana slices for about 1 minute per side until they are caramelized and golden.
Stack the pancakes on a plate, top with the warm caramelized banana slices, and finish with a drizzle of maple syrup.