雑炊 (zousui)
a porridge of rice and vegetable
混ぜご飯 (maze gohan)
the ingredients that have already been seasoned and cooked are mixed into the rice after it is cooked
粥 (kayu)
rice porridge
おにぎり (onigiri)
rice ball
丼物 (donmono)
a bowl of boiled rice with ingredients on top