Place the liquid egg whites, Greek yogurt, oat flour, half of the banana, cinnamon, vanilla, baking powder, and sea salt into a high-speed blender.
Blend the mixture until completely smooth, ensuring the oats and banana are fully incorporated into a frothy batter.
Heat a large non-stick skillet over medium-low heat and lightly grease with a small amount of the ghee.
Pour the batter into the skillet to form 3-4 small pancakes, cooking for 3-4 minutes until bubbles appear on the surface.
Flip the pancakes carefully and cook for another 2 minutes until the centers are set and the outsides are golden brown.
While the pancakes finish, slice the remaining half of the banana into circles and melt the remaining ghee in a small pan over medium heat.
Sear the banana slices in the ghee for 1 minute per side until they develop a rich, caramelized golden color.
Plate the pancakes in a stack and top immediately with the warm caramelized banana slices.