Rinse quinoa under cold water. In a medium saucepan, combine quinoa and vegetable broth. Bring to a boil, reduce heat to low, cover, and simmer for 15 minutes or until liquid is absorbed. Fluff with a fork and let cool.
In a small bowl or jar, whisk together lime juice, olive oil, chili powder, and cumin.
In a large bowl, combine cooked quinoa, black beans, corn, red bell pepper, cherry tomatoes, and red onion.
Pour the dressing over the salad and toss to coat evenly.
Gently fold in diced avocado and chopped cilantro. Serve immediately or chill before serving.
Cool the quinoa: Allow the quinoa to cool completely after cooking so it doesn’t steam and soften the fresh vegetables when mixed.
Add avocado last: Dice the avocado just before serving and gently fold it in to keep it from browning or turning mushy.
Chill before serving: For best flavor, refrigerate the assembled salad for at least 30 minutes to let the dressing soak in and the ingredients blend.
Boost the protein: Stir in cooked, shredded chicken or grilled shrimp to turn this into a heartier main dish.
Optional topping: A sprinkle of crumbled feta or cotija cheese adds a creamy, salty contrast to the fresh vegetables.
Meal prep friendly: If preparing in advance, store the salad and dressing separately. Mix them together just before serving to preserve texture and freshness.
Serve warm or cold: The salad is delicious either freshly made while the quinoa is slightly warm or served cold straight from the fridge.