Cook quinoa according to the instructions on the package, substituting the water with chicken broth.
In a medium bowl, mix marinade ingredients: soy sauce, honey, extra virgin olive oil, lemon juice, garlic, ginger, and red pepper flakes. Toss chicken pieces in with the marinade.
Spray large skillet with cooking spray and set to medium heat. Add chicken and marinade to skillet and cook 6-7 minutes, stirring half-way through.
In a small prep bowl, mix cornstarch with water and mix in with the chicken. Cook an additional 2-3 minutes to let the sauce thicken a little.
Serve 1/2 cup chicken and marinade mixture over 1/3 cup cooked quinoa.