Place the rolled oats into a high-speed blender and pulse until they reach a fine flour consistency.
Add the liquid egg whites, Greek yogurt, half of the banana, cinnamon, sea salt, and vanilla extract to the blender and process until the batter is completely smooth.
Heat a large non-stick skillet over medium heat and lightly coat with half of the ghee.
Pour the batter into the skillet to form three or four medium pancakes, cooking for 3-4 minutes until bubbles appear on the surface.
Carefully flip the pancakes and cook for an additional 2 minutes until they are golden brown and set through the center.
While the pancakes finish cooking, slice the remaining half of the banana into thin rounds.
Remove the pancakes from the pan, add the remaining ghee, and sear the banana slices for 1 minute per side until they become buttery and caramelized.
Stack the pancakes on a plate and top with the warm caramelized banana slices before serving.