Steps
1. In a skillet, heat the olive oil over medium heat.
2. Add the diced carrots and sauté for 3-4 minutes until they start to soften.
3. Stir in the black beans and corn, and cook for another 2-3 minutes.
4. Add the cooked rice, garlic powder, cumin, salt, and pepper. Stir well to combine.
5. Cook for an additional 2-3 minutes until everything is heated through.
6. Serve hot, garnished with fresh cilantro if desired.