Par-boil the potatoes and run them under cold water to cool them down. When cool enough to handle, grate them and soak for a few minutes in cold water (to remove the starch), drain and leave to dry on paper towel. (Yes some of them will stck, but they need to dry out as much as possible. Fry the onions in the oil until soft. Add in the garlic and red pepper and continue frying for about another 5 minutes, stirring regularly. Clear a spot in the middle of the frying pan and add a handful of the shredded potatoes, allow them to fry up a little, then stir into the rest of the mixture and create another little hole. Continue this until all the potatoes have been added. Add the sausage. Continue frying until the sausage is cooked through. Pour in the half can of tomato soup (more or less to preferance) and when everything is covered, serve with warm crusty bread.