In a medium mixing bowl, mash exactly half of the banana until it reaches a smooth consistency.
Whisk the liquid egg whites and non-fat Greek yogurt into the mashed banana until the mixture is well combined and frothy.
Fold in the vanilla protein powder, oat flour, baking powder, ground cinnamon, and sea salt until a thick batter forms.
Slice the remaining half of the banana into thin rounds.
Heat a non-stick skillet over medium-high heat and add 0.5 tsp of ghee along with the maple syrup.
Place the banana slices in the skillet and sear for 1-2 minutes per side until they are deeply golden and caramelized, then remove them from the pan.
Wipe the skillet clean, reduce heat to medium, and add the remaining 0.5 tsp of ghee.
Pour the batter into the skillet to form 3 or 4 small pancakes.
Cook for 3-4 minutes until bubbles appear on the surface, then flip and cook for another 2 minutes until golden brown.
Plate the pancakes and top them immediately with the warm caramelized banana slices.