In a high-speed blender, combine the rolled oats, vanilla protein powder, egg whites, Greek yogurt, baking powder, cinnamon, sea salt, and half of the banana.
Blend on high until the batter is completely smooth and slightly thickened.
Heat a large non-stick skillet over medium-low heat and lightly coat with a small amount of ghee if necessary.
Pour the batter into the skillet to form three small pancakes, cooking for 2-3 minutes until bubbles form on the surface.
Carefully flip the pancakes and cook for another 1-2 minutes until the centers are set and the outsides are golden brown.
Remove the pancakes from the pan and set aside on a plate.
Add the remaining ghee to the same skillet along with the other half of the banana, sliced into thick rounds.
Sear the banana slices for 1 minute per side until they are deeply caramelized and fragrant.
Stack the pancakes and top them with the warm caramelized banana slices before serving.