Heat a little oil in a non-stick frying pan. Brown the meat in batches for approx. 4 mins. per batch, remove from the pan, season. Wipe the cooking fat from the pan and add a little oil if necessary.
Sauté the leek, cabbage and carrots for approx. 2 mins. in the same pan. Add the rice, sauté briefly. Pour in the stock, bring to the boil, reduce the heat. Return the meat to the pan, cover and simmer over a low heat for approx. 20 mins. Stir in the nuts and parsley.