Steps
1. In a bowl, combine the cooked quinoa and black beans.
2. In a small bowl, whisk together olive oil, lime juice, salt, and pepper.
3. Pour the dressing over the quinoa and black bean mixture, and stir to combine.
4. Add cherry tomatoes and corn to the mixture and gently fold them in.
5. Serve the mixture in a bowl, topped with sliced avocado and chopped cilantro if desired.