On a sheet pan, add the sweet potato, carrot, garlic and red onion. Bake at 400F for 30 minutes, until soft.
In the meantime, boil the sunflower seeds for 10 minutes.
Once the vegetables are cooked and the sunflower seeds are soft, when safe to handle, transfer to a high speed blender with all remaining ingredients and combine until smooth. Add more water as needed to thin. Enjoy with nachos, or as a delicious pasta sauce.