1. Sprinkle fillets evenly with salt and pepper. Arrange fillets on a lightly greased wire rack in an aluminum foil-lined broiler pan.
2. Stir together green chiles, ketchup, and next 5 ingredients. Spoon half of mixture evenly over fillets, reserving remaining half.
3. Broil 7 to 8 inches from heat 18 minutes or until fish flakes with a fork. (Do not overcook.) Serve fish with reserved green chile mixture.