Use Fresh Noodles - Fresh egg noodles are preferred for their chewy texture, but if you can't find them, dry noodles work as well. If using dry noodles, make sure to cook them just until al dente to avoid a mushy texture later.
Drain and toss with oil – Once the noodles are cooked, drain them and immediately toss with about 1 tablespoon of vegetable oil. This helps to coat the noodles and keeps them from sticking as they sit.
Stir-fry quickly – Before adding the noodles, make sure your wok or skillet is hot. Stir the noodles fast once they’re in the pan to keep them from sticking together.