Rinse the tofu noodles under running water and drain.
Prepare shabu-shabu beef slices and vegetables (such as bok choy, napa cabbage, mushrooms, etc.) by cutting them into bite-sized pieces.
Pour shabu-shabu broth (anchovy stock or store-bought broth) into a pot and bring to a boil.
Once the broth is boiling, add the beef and vegetables and cook until done.
Add the tofu noodles and simmer for an additional 1-2 minutes.
Serve with your choice of sauces (such as sesame sauce, soy sauce, etc.) if desired.