Place the cottage cheese, egg, egg whites, oats, half a banana, baking powder, cinnamon, vanilla, and sea salt into a high-speed blender.
Blend on high for 30 to 45 seconds until the batter is completely smooth and the oats are fully processed.
Heat a large non-stick skillet or griddle over medium-low heat and add the coconut oil, swirling to coat the surface.
Pour the batter into the skillet to form 3 to 4 inch pancakes, being careful not to overcrowd the pan.
Cook for 3 to 4 minutes until small bubbles form on the surface and the edges look set and golden.
Carefully flip the pancakes and cook for an additional 2 to 3 minutes until they are puffed and cooked through.
Serve immediately while warm, optionally topped with the remaining banana slices or a dollop of Greek yogurt.