Boil plenty of water and cook the noodles until al dente. Drain and set aside.
Heat a wok until very hot, then add oil and swirl to coat the surface. Add garlic and onion, cooking until fragrant. Stir in carrots and mushrooms, and cook for 1 minute.
Pour in the stock, followed by oyster sauce, soy sauces, sugar, and white pepper. Bring to a boil and taste. Adjust salt if needed.
Add the noodles to the wok, gently tossing to coat with the liquid. Simmer on low heat until most of the liquid is absorbed.
Stir in the chives and sesame oil, tossing until the chives wilt. Serve immediately and enjoy!