I recommend altering the taste by including mentsuyu or soy sauce and mirin instantly into the broth, but as stated before inside the udon section, seasoning the broth with salt and pepper immediately after serving can also be an alternative. You can buy thinly sliced “shabu shabu” beef (or pork) https://dominicksslct.blogolize.com/examine-this-report-on-shabu-songkhla-73049327