Rinse the quinoa well under cold water In a saucepan until it’s clear. Heat the olive oil over medium heat, then coat the quinoa with the oil.
Add broth and bring to a boil.
Reduce heat and simmer covered—about 15 to 20 minutes for white quinoa and about 20 to 25 minutes for red.
Let stand under cover for 10 minutes. Using a fork, detach the grains. Let cool.
Mix the quinoa and the other ingredients in a large bowl. Mix the ingredients of the vinaigrette in a small bowl, and then pour over the quinoa salad. Mix gently.