Bring 1 3/4 cups water to a boil in a medium saucepan; gradually stir in couscous. Remove from heat; cover and let stand 5 minutes. Fluff with a fork.
While couscous stands, steam broccoli florets, covered, for 3 minutes or until tender.
Combine couscous, broccoli, onion, and next 10 ingredients (onion through chickpeas), tossing gently. Sprinkle with cheese.