Japanese
Mix the Worcestershire sauce, oyster sauce, ketchup, soy sauce and sugar in a small bowl.
Microwave the noodles in their bags for 1 minute, then loosen them with your fingers.
Heat the oil in a large frying pan or wok over medium-high heat, add the pork, season with salt and pepper and fry for 3 minutes until lightly browned.
Add the onion and carrot and stir-fry for 2 minutes, then add the cabbage and stir-fry for 2 minutes more.
Add the noodles and bean sprouts and toss for 2 minutes until the noodles are hot.
Pour in the sauce and toss for 1-2 minutes until the noodles are evenly coated and slightly caramelized.
Serve topped with pickled red ginger and a sprinkle of aonori.