Heat 1 tablespoon olive oil in a large non-stick frying pan set over a medium heat. Rub crushed garlic into steak and cook for 3-4 minutes each side, or until cooked to your liking. Remove steak from pan, cover loosely with foil to keep warm and set aside to rest.
Meanwhile, cook noodles according to packet instructions. Drain and place in large salad bowl. Add coleslaw, bean sprouts and lettuce. Combine sweet chilli sauce, sesame oil, lime juice and 2 tablespoons hot water in a dish. Pour over salad and toss.
Thinly slice beef. Divide noodle salad among 4 serving plates. Top salad with beef, drizzle with any remaining dressing and serve.