Prepare beef and various vegetables into bite-sized pieces.
Pour 600ml of water into a pot and add kelp to make broth.
When the water boils, remove the kelp, add radish and onion, and boil for about 5 more minutes.
Add mushrooms, bok choy, zucchini, carrots, and other vegetables one by one.
Lightly dip each piece of beef into the broth to cook.
Enjoy with dipping sauce as desired.