Chazuke

Chazuke or ochazuke (お茶漬け, from (o)cha 'tea' + tsuke 'submerge') is a simple Japanese dish made by pouring green tea, dashi, or hot water over cooked rice. Chazuke provides a way to use leftover rice as a quick snack because it is easy to make. In Kyoto, ochazuke is known as bubuzuke. Since the 1970s, packaged "instant ochazuke", consisting of freeze-dried toppings and seasonings, has become popular. Common toppings include tsukemono (Japanese pickles), umeboshi, nori (seaweed), furikake, sesame seeds, tarako and mentaiko (salted and marinated pollock roe), salted salmon, shiokara (pickled seafood), scallions, and wasabi. This dish first became popular in the Heian period of Japan, when water was most commonly poured over rice, but beginning in the Edo period, tea was often used instead.

Source: Wikipedia