1. Preheat broiler. Cook and stir squash in hot oil in large skillet for 2 minutes. Add undrained tomatoes, beans and olives; bring to a boil. Reduce heat; simmer, uncovered for 5 minutes or until thickened slightly.
2. While vegetables are simmering, heat chicken broth to just boiling. Stir in couscous, cover and remove from heat.
3. Meanwhile, season salmon with pepper. Place salmon on greased unheated rack of broiler pan. Broil 4 inches from heat 6-8 minutes or until fish flakes easily with fork.
4. Fluff couscous and divide among 4 plates. Top with salmon and vegetable mixture.