Cut the beef and vegetables into bite-sized pieces.
Heat some cooking oil in a pan and stir-fry the beef.
When the beef is half-cooked, add onions, napa cabbage, enoki mushrooms, bok choy, and other vegetables, then stir-fry together.
Pour in shabu-shabu broth or water and bring to a boil.
Season with soy sauce, minced garlic, pepper, and other seasonings to taste.
When all the ingredients are cooked, transfer to a plate and serve.