Put the pasta in plenty of boiling salted water. Let it boil for 4-5 minutes, loosening up with a fork from time to time. Drain, rinse with cold water and let drain. Peel onion and garlic, dice finely.
Clean, quarter, wash and cut the peppers into thin strips. Clean, quarter and wash the Chinese cabbage, also cut into strips. Wash the meat, dab dry and cut into strips. Heat oil in a wok or deep frying pan.
Brown the meat in it in portions, take it out and season with salt and pepper. Sauté onion, garlic and paprika in the frying fat. Add noodles and Chinese cabbage and stir-fry for 2-3 minutes.
Add Sambal Oelek, soy sauce and meat, heat everything up again briefly. Season with pepper and possibly some more soy sauce. Serve garnished with coriander.