Instructions:
Heat 1 tablespoon of oil in a skillet. Sauté the seitan on medium high heat until brown and crisp. Mash some potatoes with a spoon to thicken the soup, then stir in the seitan. Add more water as per your desired consistency. Taste and season with salt and pepper and parsley.
Notes: When I made it I left out the onion and garlic because I wanted it to be simpler, and I didn't add any water because I wanted it to be chunky. You can also add cheese if you want!