Step 1

Cook the quinoa. Place the quinoa, water, and salt in a medium saucepan and bring to a boil over medium-high heat. Reduce the heat to low, cover, and simmer until the quinoa is tender and all the liquid is absorbed, about 15 minutes. Transfer the quinoa to a rimmed baking sheet, spread into an even layer, and refrigerate until cooled completely, 10 to 15 minutes.

Step 2

Make the dressing. Place all the ingredients in a large bowl and whisk until emulsified and combined.

Step 3

Assemble the salad. Add the cooled quinoa, black beans, corn, onion, bell peppers, avocados, and all but 2 tablespoons of the cilantro to the dressing. Toss to combine. Garnish with the reserved 2 tablespoons cilantro. Serve at room temperature or chilled.