Meanwhile, heat a large skillet over medium high heat. Add the olive oil. When the oilis hot, add the onion and saute for 2-3 minutes. Then add in the bell pepper, tomatoes, garlic, chili powder and cumin. Continue to saute for 2 more minutes. Carefully add the rinsed and drained black beans. Fold the bean mixture into the cooked rice, sprinkle with cilantro and squeeze a couple of the times over the top of the rice.