Heat oil in a wok over high heat.
Once the oil is hot and shimmery, add garlic and ginger and saute for 2-3 seconds.
Add chili paste and saute for 4-5 seconds.
Now add spring onion whites, green chilies, and onions and saute for 5-6 seconds.
Add carrots, green beans, green bell pepper, and scallion greens and saute for 20-30 seconds.
Now add dark soy sauce, vinegar, sugar, pepper powder, and salt, and mix well.
Add the cooked noodles to the wok and toss gently to coat with the sauce.
Garnish with chopped spring onion greens and serve hot.