Combine the mango, red pepper, scallions, and cilantro in a mixing bowl. Add the red wine vinegar, grapeseed oil, and salt and stir to combine. Add the quinoa and stir until everything is well incorporated. Fold in the black beans. Serve immediately or let it sit for a bit to let the flavors meld.
I served this with pepperjack cheese quesadillas and it was DELISH! This is a great healthy summertime meal that won’t have you stuck in a hot kitchen all day!