雑炊 · rice porridge made by simmering cooked rice in a seasoned broth, often containing vegetables, fish, etc. (usu. made from leftovers)

雑炊 is read ぞうすい (zōsui) and means rice porridge made by simmering cooked rice in a seasoned broth, often containing vegetables, fish, etc. (usu. made from leftovers).