Heat the oil in a wok or large frying pan, then stir-fry the chopped vegetables over a high heat for 2-3 mins or until cooked. They need to have a bite to them and need to be crunchy.
Add salt, and give it a good stir. Furthermore add in White Vinegar, Soy Sauce, Ketchup and Green Chili Sauce. Give it a good mix.
Next add in noodles and mix well. Cook for 2 to 3 minutes and turn the heat.
Check the salt and add more if needed. You can also top off the noodles with extra green chili sauce while serving if needed.