Heat the oil in a large wok or pan and when smoking add the mushrooms. When golden add the beef and juices and chopped scallions. Mix in the noodles and broccoli, toss well and serve.

Japchae (also spelled "chapchae") is a Korean dish that is based on slippery, resilient sweet potato noodles (sometimes ... where you can also pick up packets of beef short ribs cut for Korean ...