Chop the butternut squash into ½ inch cubes. It’s important to cut the squash into uniform pieces so it cooks evenly.
Place the squash in a large bowl. Pour avocado oil over the squash and stir. In a small bowl, stir together the chili powder, coconut sugar, cumin, and salt. Sprinkle the seasoning over the squash, and stir to coat evenly.
Place the squash on a baking sheet with sides. Bake for 30 minutes, or until tender, stirring occasionally.