They mean roseu-pyeonchae (로스 편채).
Roseu-pyeonchae is pan-fried beef with vegetables…
Lean slices of beef, pan-fried and then eaten with julienned vegetables. It comes with a vinegary soy sauce dip and a mustard sauce.
Roseu Pyeonchae. Seared sliced raw Kobe beef with vegetables.
편채 PYEON CHAE Beef carpaccio with onions, sesame leaf, radish sprouts…