As the sweet potato cooks, make the maple oat crumble. In the bowl of a food processor or blender, put the oats, walnuts, coconut oil, maple syrup, cinnamon, and salt. Pulse until it's all mixed together but still chunky.
½ cup oats, ¼ cup walnuts, ½ TBS avocado oil, ½ TBS maple syrup, ¼ tsp cinnamon, pinch of kosher salt