While the meat is cooking, make the cous cous: Combine the stock and salt in a medium saucepan, and bring to the boil. Remove the pan from the heat and stir in the cous cous. Cover the pan tightly and stand for 5 mins, or until the liquid is absorbed and the cous cous is tender. Fluff with a fork and mix in the olive oil and 1 tbsp of parsley. Season with pepper to taste, cover and keep warm.