Mix the steaks with the chilli bean paste and some vegetable oil. Cover and set aside to marinate for 10 minutes.
Preheat a ridged chargrill over a moderately high heat. Cook the steaks for 2-3 minutes on each side or until cooked to your liking. Cover loosely with foil and set aside to rest for 5 minutes.
To make the wombok salad: Mix the wombok, spring onion, noodles and coriander together. Season with the soy sauce and vinegar and toss to coat.
Slice the steaks and serve with the salad.
Tips
Chinese chili bean paste is also known as toban djan, a fermented chilli bean sauce available from Asian grocery stores.
For a gluten free option, omit the crispy noodles.
Try adding other vegetables to the salad, such as grated carrot, beansprouts or snow peas.