In a blender, combine banana, pumpkin, eggs and baking powder. Blend until smooth.
Heat a nonstick skillet over medium-low heat. Spray with nonstick cooking spray.
Pour about 1 tablespoon of batter onto skillet and cook until golden-brown about 1-2 minutes. Carefully flip and cook until golden-brown on the other side, about 1-2 minutes. Repeat with remaining batter.