In a large deep 10–12 cup pot over a medium heat, heat the oil.Add the carrots, celery, onion, and garlic and cook until soft, about 7 minutes.Mix in the spices and Dijon mustard. Add the stock and mix well.Take the tomatoes from the can leaving the juice behind and carefully squeeze them with your hand. Add to the pot and bring to a simmer.Empty the beans into a colander and rinse with cold water.Add the beans and the Buffalo sauce to the pot and simmer for 30 minutes.Slice the sausages into chunks and add to the pot.Simmer for 5 more minutes.Taste and season with salt and cracked black pepper.Serve in small bowls with rice, shredded cheese and plenty of fresh chopped parsley.