1.Place noodles in a medium heatproof bowl and cover with boiling water. Stand until just tender, then drain.
2.To make balsamic vinaigrette, combine ingredients in a screw-top jar and shake well.
3.Cook steaks on heated oiled grill plate (or grill or barbecue) until browned both sides and cooked as desired. Cover; stand 5 minutes.
4.Cut noodles into 5cm lengths and place in a large bowl with fennel, onion and rocket. Slice steak thinly, add to noodles with balsamic vinaigrette. Toss gently to combine. Serve salad topped with cheese.