Rinse the brown rice and barley thoroughly.
Cut the broccoli, carrot, and onion into bite-sized pieces.
Add brown rice, barley, and water to a pot and cook the rice.
When the rice is cooked, add the vegetables and nuts, then let it steam for 5 minutes.
Mix the rice well and serve in a bowl.
Drizzle olive oil and perilla oil evenly to finish.