Bring a large pot of salted water to boil. Add the rice, reduce heat, cover and cook for 15 minutes or until most of liquid is absorbed.
While rice is cooking, cut chicken into bite-sized pieces season with olive oil, cumin powder, salt, pepper, onion and green bell peppers. Sauté the mixture over medium heat for 10 minutes or until vegetables are tender.
Add sautéed chicken to cooked rice along with chicken stock in a large skillet. Bring liquid up around an boil then reduce stovetop burner and cover pot, lower temperature setting (if possible), simmer for 20 minutes or until all liquids have been absorbed by the mixture.
Fluff mix together rice with chicken using fork to combine.