Cook the rice according to the package directions. While the rice is cooking, heat the black beans (undrained) in a small sauce pot, along with the cumin, garlic powder, and salt to taste (if needed). Slice the green onions and shred the cheese (if not pre-shredded).
Once the rice is cooked, build the bowls. Begin with one cup cooked rice, ⅓ cup warm black beans, ⅓ cup salsa, and 1 oz. shredded cheese (about ¼ cup). Top with a few sliced green onions and serve.