Grate Daikon radish. Set aside.
In a large pot, put dried Kombu in water, and let it sit for 15 minutes.
Cut Mizuna into 2" long pieces. Cut off the end of Shimeji and pull apart into small bunches. Cut Tofu into 8 pieces.
Heat the pot at medium high heat until the water boils, then take the Kombu out. Turn down the heat to medium low. Add Sake.
Add vegetables and Tofu in the broth. Dip the meat in the simmering broth until the meat is cooked through. Cook meat and vegetables as you eat.