Place the oats, banana, eggs, egg whites, baking powder, salt, cinnamon, protein powder, and flax meal into a blender. Blend on medium-low speed until the mixture is thoroughly combined.
Preheat a nonstick griddle or skillet over medium-high heat. Lightly grease with cooking spray or coconut oil.
Pour the batter onto the griddle, using about 1/4 cup for each pancake. You can add a few blueberries or chocolate chips onto each pancake at this stage.
Cook the pancakes for 2-3 minutes, or until the edges appear set and dry. Flip carefully and cook for an additional 1-2 minutes on the other side until golden brown.