This dish has a nice bold flavor of soy-flavored beef and ginger. Hijiki adds another layer of flavor and balance. This dish is always a hit at dinner parties. You can use a generous amount of ginger and won’t be disappointed. The oyster sauce makes the dish extra complex, but if you don’t have it, you can simply substitute it with extra 1/2 tablespoon soy sauce. I enjoy serving this dish with simple stir-fry vegetables (such as bok choy or broccoli).