Rub the steaks with the soy sauce, oyster sauce, sesame oil and ginger.
Preheat a ridged chargrill over a moderately high heat. Grill the steaks for 2 minutes on each side or until cooked to medium rare. Place on a plate and loosely cover with foil. Allow to rest for 5 minutes.
Serve the steaks with the brown rice salad.
To make the brown rice salad: Place a frying pan over a moderately high heat and cook the mushrooms in the oil for 2 minutes or until lightly coloured. Add the ginger and spring onions and cook for 30 seconds or until fragrant. Set aside to cool. Toss with the remaining ingredients.
