In a medium pot, add the quinoa and 1 ½ cups water. Bring to a boil, then reduce the heat and simmer, covered, for 12 minutes or until cooked through and water has evaporated. Transfer to a large plate or bowl, spread out, and let cool.
Add chicken to a bowl or cutting board along with the cumin, garlic powder, red pepper flakes (if using), salt, and oil. Toss so the chicken is evenly coated.
You can either grill or pan-fry your chicken until it is all the way cooked through, about 3-6 minutes per side (depending on thickness). If cooking in a skillet, I like to cook over medium heat covered with a lid. Let the chicken rest for at least 5 minutes, then cut it into bite-sized pieces.
In a high-speed blender, add the dressing ingredients. Start by blending on low and slowly increasing to high and continue to blend until smooth. If it’s struggling to blend, add a bit more olive oil.
In a large bowl, add the quinoa, chicken, cucumber, peaches, and herbs. Pour the dressing over top, scraping out every last bit. Toss to coat. Taste and add more salt, lime, or oil as needed.
Serve it up topped with avocado, cheese, pumpkin seeds, and a lime wedge. I also like to top it with a drizzle of good olive oil. If you have pickled red onions, those are great on top too!