In a medium saucepan, bring the quinoa and vegetable broth to a boil. Reduce heat to low and simmer for 15-20 minutes, or until the quinoa is cooked through.
Meanwhile, heat a large skillet over medium-high heat. Add the bell pepper, onion, corn and black beans. Cook for 5-7 minutes until vegetables are tender.
Add the cooked quinoa to the skillet and season with garlic powder, salt and pepper. Stir to combine.