Whisk together the egg whites and protein powder. Stir in the mashed banana and add the blueberries. If the pancake mixture seems too thick, add a splash of almond milk to thin it. Heat the coconut oil in a pan to low-medium. Pour in the pancake mixture and cook until little bubbles form (about 5 minutes). Make sure the pancake has set enough before you try flipping it, then flip over. Cook the pancake for another 2-3 minutes. You can also make 3 small pancakes instead of 1 large. Serve with your favourite toppings.