In a blender, combine the egg whites, half of the banana, half of the Greek yogurt, oat flour, protein powder, cinnamon, baking powder, and sea salt.
Blend on high until the batter is completely smooth, then let it rest for 2 minutes to allow the oats to hydrate.
Heat a large non-stick skillet over medium heat and melt half of the ghee to coat the surface.
Pour the batter into the skillet to form three or four pancakes, cooking until small bubbles appear on the surface.
Carefully flip the pancakes and cook for another 1-2 minutes until they are golden brown and cooked through.
While the pancakes finish, slice the remaining half of the banana into thin rounds.
In a separate small skillet, melt the remaining ghee and sear the banana slices for 1 minute per side until they are caramelized and soft.
Plate the pancakes in a stack, topping them with the remaining Greek yogurt and the warm caramelized banana slices.