Place fish fillets in ungreased 13x9x2 baking pan. Mix catsup, lemon juice, Worcestershire sauce, sugar, onion, salt and pepper sauce. Pour on fish; turn until both sides are coated. Cover and refrigerate 30 minutes. Heat oven to 400ºF. Bake, uncovered, until fish flakes easily with fork, 15 to 20 minutes. Garnish with lemon wedges. Serve with pan juices. Serves 3 or 4.