Cook quinoa: Combine rinsed quinoa and vegetable broth in a saucepan. Bring to a boil, then reduce heat, cover, and simmer for 15 minutes, or until liquid is absorbed. Let stand for 5 minutes, then fluff with a fork.
Prepare beans and corn: In a medium bowl, combine black beans, corn, salsa, chopped cilantro, chopped red onion, lime juice, and cumin.
Season: Season the bean and corn mixture with salt and pepper to your liking.
Assemble bowls: Divide the cooked quinoa among serving bowls. Spoon the black bean and corn mixture over the quinoa.
Add toppings: Add your favorite optional toppings like avocado, shredded lettuce, cherry tomatoes, or jalapeños.
Notes
For a spicier bowl, add a pinch of cayenne pepper or a dash of hot sauce to the bean mixture.
You can prepare the quinoa and bean mixture ahead of time for quick assembly.