Tororo

Tororo () is a sticky food made from grating a yam. Tororo is mixed with other food that typically includes dashi, wasabi, and green onions, and the amount of these ingredients can be adjusted to suit one's taste. In Japan, tororo is eaten as a side dish, or added to noodles (udon or soba). Tororo has a lot of vitamin B1, vitamin C, calcium, potassium, and other vitamins and minerals.
Mugitoro.
Mugitoro () is a wheat dish made by pouring cold tororo on top of cooked wheat.
Yamakake.
Yamakake () is a dish made from tororo and tuna (maguro). Tuna seasoned with soy sauce and tororo with dashi give a mild taste. Sometimes, it is put on rice as Donburi.
Tororo udon/soba.
Tororo is also eaten with udon or soba. In tororo udon/soba, it is often eaten with a raw egg or a yolk.
Japanese people think it is very healthy to eat tororo, so it is added to many foods.　
Tororo Nattō.
The Japanese food nattō is often eaten with tororo, too.