Preheat oven to 350 degrees Fahrenheit (175 degrees Celsius) and lightly grease an 8-ounce oven-safe ramekin.
Combine rolled oats, pumpkin puree, almond milk, maple syrup, egg, baking powder, pumpkin pie spice, vanilla extract, and salt in a high-speed blender.
Process on high for 30 seconds or until the batter is completely smooth and well-incorporated.
Fold in half of the dark chocolate chips using a spatula.
Pour the batter into the prepared ramekin and sprinkle the remaining chocolate chips on top.
Bake for 22 to 25 minutes until the top is firm to the touch and a toothpick inserted into the center comes out clean.
Remove from the oven and let rest for 5 minutes before consuming.