1/4cupfreshly squeezed lime juiceplus additional for serving
1teaspoonground chili powder
1/4teaspooncayenne pepperuse less or omit if sensitive to spice
For Serving (optional):
Diced avocadoor guacamole
Non-fat plain Greek yogurtor sour cream
Place the chicken breasts on a cutting board with some space between and cover with a large piece of plastic wrap. With a mallet, lightly pound the meat to an even thickness so. Place in a shallow dish.
Top the chicken with the olive oil, salt, pepper, lime zest, and lime juice. Rub and turn to coat. Let rest at least 15 minutes while you prep the other ingredients or refrigerate for up to 8 hours (let stand at room temperature at least 10 minutes prior to cooking). Preheat an outdoor grill or indoor grill pan to medium high (about 425 to 450 degrees F).
Place the red onion in a small bowl and cover with water (this takes off some of the red onion's bite while preserving its flavor. You can skip if you like raw red onion just as it is). Set aside.
Prepare the quinoa according to package directions. Once cooked, fluff with a fork, then transfer to a large mixing bowl.
To make the dressing, in a small bowl or measuring cup, whisk together the olive oil, lime juice, chili powder, cumin, salt, cayenne, and black pepper.
Drizzle over the warm quinoa, then add cilantro, and toss to combine.
Lightly oil the grill. Grill the chicken until completely cooked through and the temperature on an instant read thermometer reads 160 to 165 degrees, about 8 to 12 minutes total, flipping once or twice throughout. The amount of time you need will vary based on the size and thickness of each breast. Remove to a plate, cover, and let rest 5 minutes.
Cut into bite-sized pieces and add to the bowl with the quinoa.
Drain the red onion, then add to the bowl with the quinoa.
Gently stir in the black beans, corn, tomato, and jalapeno. Serve warm with a sprinkle of fresh cilantro and any desired toppings.