In a medium saucepan, combine the rinsed quinoa and vegetable broth. Bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes or until the quinoa is fluffily cooked and the liquid is absorbed. Remove from heat and let it cool.
In a large mixing bowl, combine the halved cherry tomatoes, black beans, diced avocado, corn, red onion, and chopped cilantro.
In a small bowl, whisk together the lime juice, olive oil, cumin, salt, and pepper until well combined.
Once the quinoa is cooled, add it to the large mixing bowl with the vegetables and beans. Pour the dressing over the salad and gently toss everything together to combine.
Taste and adjust seasoning if necessary, adding more lime juice or salt to your preference.
Refrigerate for at least 30 minutes before serving to allow the flavors to meld.
Notes
Serve chilled for best flavor. Garnish with additional cilantro and lime wedges.