HEAT oven to 425ºF.
HEAT oil in large skillet on medium heat. Add onions and mushrooms; cook and stir 5 min. Stir in couscous; cook and stir 1 min. Add broth and broccoli; stir. Bring to boil; cover. Simmer 8 min. or until liquid is absorbed.
MEANWHILE, place fish in single layer in shallow pan sprayed with cooking spray. Mix jam and mustard; spread over fish. Bake 10 min. or until fish flakes easily with fork.
STIR Parmesan into couscous mixture; spoon onto 4 plates. Top with fish and cilantro.