I added potatoes and wiener sausages for my kids. You could also add seafood, pork and different types of vegetables.
Japanese-style hot pots are delicious, but occasionally, you crave for a different seasoned hot pot. The 'risotto' you make with the leftover soup at the end is delicious.
We use a pretty small earthenware pot. If there's not enough soup, add more water, soup stock granules and ketchup. Modify the ingredients to your preference.
Enjoy Japanese food around the world.