Combine marinade ingredients. Place chicken in bowl, add half the marinade, and allow to sit at room temperature for 15-30 minutes
Meanwhile, cook the noodles following pack instructions. Transfer to a sieve and rinse in cold water, drain thoroughly
Drain excess marinade form chicken. Set a large high sided non-stick frying pan or wok over a medium-high heat. Add the oil and stir-fry the chicken for 4-5 minutes or until cooked through. Transfer to a bowl and set aside. Wipe out pan with a paper towel
Add a little more oil and stir fry the shallot and chili for 1 minute, then add the vegetables and stir fry for 2-3 mins until just tender
Add the chicken and remaining sauce. Toss together to heat through
Add noodles, pear and spring onion and give a quick stir
Serve into bowls scattered with nuts and coriander if using
4 servings