On top of the rice, you can also add beans or lentils to get complete proteins:

https://smile.amazon.com/Goya-Dry-Pinto-Beans-Ounces/dp/B003T0BU3E/ref=sr_1_4_a_f_it?ie=UTF8&qid=1497890846&sr=8-4&ppw=fresh
https://smile.amazon.com/Goya-Dry-Lentils-16-oz/dp/B0000DIF38/ref=sr_1_2_a_f_it?ie=UTF8&qid=1497890934&sr=8-2&ppw=fresh