Preheat your oven to 350°F (175°C). Line a muffin tin with paper liners or lightly grease with nonstick spray.
In a blender or food processor, add pumpkin puree, maple syrup, eggs, vanilla, almond butter, and almond milk. Blend until smooth.
Add rolled oats, baking powder, baking soda, salt, and cinnamon. Blend or pulse until the oats are broken down but not completely flour-like—you want some texture.
Stir in dark chocolate chips with a spatula.
Divide batter evenly among muffin cups, filling about ¾ full. Sprinkle extra chocolate chips on top if desired.
Bake for 18–22 minutes, or until a toothpick inserted in the center comes out mostly clean.
Let cool in the pan for 5 minutes before transferring to a wire rack.