Heat a large nonstick skillet over medium-high heat. Add chicken; cook 3 minutes on each side. Place chicken and beans in an 11 x 7-inch baking dish coated with cooking spray, and cover with plastic wrap. Microwave at high 12 minutes or until chicken is done, turning after 6 minutes.
While chicken mixture cooks, heat oil in skillet over medium-high heat. Add onion and the next 7 ingredients (onion through salt); cook for 3 minutes or until onion is soft, stirring frequently. Add broth, and cook until thick (about 2 minutes). Spoon sauce over chicken mixture.