Adapted from [Mel’s Kitchen Cafe|http://www.melskitchencafe.com/2011/08/mango-and-black-bean-quinoa-salad.html]
In a bowl, mix quinoa, black beans, mango, bell pepper, green onions, and cilantro.
In a smaller bowl, whisk together vinegar, oil, lime juice, and pepper. Drizzle over quinoa mixture. Stir until completely combined.
Chill in refrigerator 1-2 hours before serving. Serve cold.