SPEEDY VEG NOODLES WITH OYSTER SAUCE

300g pack Tenderstem broccoli spears, stalks halved lengthways • 3 nests fine egg noodles (about 200g) • 2 tbsp wok oil, plus extra for tossing • 3 large garlic cloves, finely chopped • 40g fresh root ginger, finely grated • 200g pack mixed exotic mushrooms • 300g pack sweet mixed pepper stir-fry • 1 tbsp reduced salt soy sauce • 5 tbsp Lee Kum Kee Premium Oyster Sauce • 20g roasted cashew nuts