In a mixing bowl, combine the mince, onion, garlic, breadcrumbs, soy sauce, egg and half of the parsley. Season with a little salt and pepper.
With oiled hands, shape the mixture into meatballs and place on a tray or board.
Heat the oil in a large frying pan or wok over medium heat. Fry the meatballs in batches until well coloured and cooked through. Remove from the pan and set aside.
At the same time bring a large pot of salted water to the boil and cook the noodles according to packet instructions, drain well.
Whisk the sauce ingredients together in a small bowl and then add to the frying pan that the meatballs cooked in. Stir over a medium heat, add the capsicum and meatballs to the sauce and toss to coat. Simmer until the capsicum has softened.
Divide the noodles between shallow bowls and top with the meatballs, capsicum and sauce.
Sprinkle with remaining parsley.
Tip: Serve meatballs with your favourite steamed greens alongside.