Pulse the rolled oats in a high-speed blender until they reach a fine flour-like consistency.
Add the egg whites, whole egg, Greek yogurt, protein powder, baking powder, cinnamon, vanilla extract, sea salt, and half of the banana to the blender.
Blend the mixture on high until the batter is completely smooth and thick.
Slice the remaining half of the banana into thin rounds.
Heat a large non-stick griddle over medium heat and lightly coat with a small amount of the coconut oil.
Pour the batter onto the griddle to form three or four pancakes, cooking until small bubbles appear on the surface.
Flip the pancakes carefully and cook for another 2 minutes until they are golden brown and cooked through.
In a separate small skillet, melt the remaining coconut oil over medium-high heat and add the banana slices.
Sauté the banana slices for 1-2 minutes per side until they are deeply caramelized and golden.
Plate the pancakes and top them with the warm caramelized bananas before serving.