Preheat oven to 350°F. Line or grease a muffin tin. Pulse rolled oats in a blender or food processor about 5–10 seconds, you want mostly flour with some small oat pieces left. In a bowl, whisk pumpkin, sweetener, eggs, oil, and vanilla. Stir blended oats, pumpkin pie spice, baking powder, baking soda, and salt together. Add dry mixture into wet, stir well and fold in chocolate chips. Scoop into muffin tin and bake 22–25 minutes, until a toothpick comes out clean. Cool for 10min before eating, enjoy!