Place the rolled oats into a high-speed blender and pulse until they reach a fine, flour-like consistency.
Add the liquid egg whites, Greek yogurt, half of the banana, cinnamon, vanilla extract, baking powder, and sea salt to the blender.
Process the mixture on high until the batter is completely smooth, then let it rest for 5 minutes to allow the oats to hydrate and thicken.
Heat a large non-stick skillet over medium heat and lightly coat the surface with half of the ghee.
Pour the batter into the skillet to form 3 or 4 small pancakes, cooking for approximately 3 minutes until small bubbles appear on the surface.
Carefully flip the pancakes and cook for an additional 2 minutes until they are golden brown and set through.
Remove the pancakes from the pan, then add the remaining ghee and the second half of the banana, sliced into rounds, to the skillet.
Sauté the banana slices for about 1 minute per side until they are caramelized and fragrant, then layer them over the warm pancake stack.