In a high-speed blender, combine the egg whites, Greek yogurt, rolled oats, half of the banana, cinnamon, vanilla, baking powder, and sea salt.
Blend on high until the batter is completely smooth and consistent.
Let the batter rest for 5 minutes to allow the oats to hydrate and the mixture to thicken.
Slice the remaining half of the banana into thin rounds.
Heat a large non-stick skillet over medium heat and lightly coat with half of the coconut oil.
Pour the batter into the skillet to form small pancakes, cooking for 2-3 minutes until bubbles form on the surface.
Flip the pancakes and cook for another 1-2 minutes until both sides are golden brown, then remove from the pan.
Add the remaining coconut oil to the skillet and sear the banana slices for 1 minute per side until they are caramelized and soft.
Stack the pancakes on a plate and top with the warm caramelized banana slices.