Combine first 7 ingredients in zip-lock bag, add chicken, seal, and let stand for 20 minutes.
Remove chicken, reserving marinade. Pat chicken dry with paper towels.
Coat a large nonstick skillet with cooking spray; heat over medium-high heat. Add chicken and cook 4-5 minutes on each side or until done. Remove chicken from skillet and keep warm.
Wipe skillet clean. Add reserved marinade and bring to a boil. Boil 2 minutes, stirring often.
Cut cooked chicken diagonally into 1/2-inch-thick slices. Spoon Mandarin-Black Bean Salad in center of 4 serving plates. Arrange chicken slices around salad, and drizzle chicken evenly with warm marinade.
Mandarin-Black Bean Salad:
Stir together all ingredients in a large bowl. Let stand until ready to serve, tossing occasionally.