Wikipedia
Kongbap is a Korean dish consisting of white or brown rice cooked together with one or more beans (and sometimes also other grains). Kongbap may be made from scratch by combining and cooking together dried rice and beans, although it is also commercially available premixed packages in dried form in grocery stores throughout Korea, as well as in Korean grocery stores in other nations. Although the exact mixture may vary, typical ingredients include short-grain brown rice, green peas, azuki beans, black soybeans, Job's tears, black glutinous rice, barley, and sorghum. Another typical mixture consists only of white rice and green peas. The dried kongbap mixture is generally soaked in water for several hours or overnight before cooking, in order to ease the softening process of the beans while cooking.