Place the rolled oats into a high-speed blender and pulse until they reach a fine, flour-like consistency.
Add the egg whites, non-fat Greek yogurt, half of the banana, vanilla extract, ground cinnamon, baking powder, and sea salt to the blender.
Blend the mixture on medium speed until the batter is completely smooth and well-incorporated.
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 three or four individual pancakes, cooking until small bubbles form on the surface and the edges appear set.
Carefully flip the pancakes and cook for another 2 minutes until they are cooked through and lightly browned.
While the pancakes finish cooking, slice the remaining half of the banana into thin rounds.
Remove the pancakes from the pan, add the remaining ghee, and sauté the banana slices for 1 minute per side until they are soft and caramelized.
Plate the pancakes and top them immediately with the warm caramelized banana slices.