Mash half of the banana in a medium mixing bowl until smooth using a fork.
Whisk in the Greek yogurt, egg whites, and vanilla extract until the wet mixture is well combined.
Stir in the oat flour, vanilla protein powder, ground cinnamon, sea salt, and baking powder until a thick batter forms.
Heat 1 teaspoon of ghee in a large non-stick skillet over medium-low heat.
Pour the batter into the skillet to form three pancakes and cook for 3-4 minutes until bubbles form on the surface.
Flip carefully and cook for another 2-3 minutes until the centers are set and the outsides are golden.
While the pancakes finish, slice the remaining half of the banana into rounds.
Heat the remaining 1 teaspoon of ghee in a separate small pan and sear the banana slices for 1 minute per side until caramelized and tender.
Plate the pancakes and top with the warm caramelized banana slices before serving.