Bring stock to the boil in large pan; remove from heat. Add coucous to pan, cover, stand for about 5 minutes or until all the stock is absorbed
Meanwhile, cook beef on heated oiled grill plate (or grill or barbecue) until browned on both sides and cooked as desired; slice beef thinly.
Fluff couscous with fork, add apricots, sultanas, onion and herbs; mix gently.
Place pine nuts and cumin in dry small pan; stir over a low heat until seeds are just fragrant and pine nuts are toasted. Combine seeds and nuts with dressing in a small bowl; drizzle over beef and couscous.