01 - Combine bananas, eggs, almond milk, and vanilla extract in a blender. Blend on medium speed until the mixture is completely smooth and no banana lumps remain.
02 - Add oats, protein powder, baking powder, cinnamon, and salt to the blender. Blend again until a uniform batter forms. If using maple syrup, chocolate chips, or nuts, pulse briefly to incorporate without overmixing.
03 - Heat a nonstick skillet or griddle over medium heat. Lightly coat the surface with cooking spray or a thin layer of oil.
04 - Pour approximately 1/4 cup of batter per pancake onto the hot skillet. Cook for 2 to 3 minutes until bubbles rise to the surface and edges appear set. Flip carefully and cook an additional 1 to 2 minutes until both sides are golden brown and the center is cooked through.
05 - Transfer cooked pancakes to a plate and repeat with the remaining batter. Serve warm with desired toppings such as sliced banana, fresh berries, nut butter, or a drizzle of maple syrup.