1 lg. onion, sliced
1/2 stick butter
1 c. catsup
2 tbsp. fresh lime juice
2 tsp. bottle steak sauce
Dash of Worcestershire sauce
1/2 tsp. salt; optional
1/8 tsp. pepper
1 1/2 to 2 lb. fish fillets

Saute onion in butter until soft in large skillet. Add catsup, lime juice, steak sauce, Worcestershire, salt, and pepper. Bring to a boil. Cut fish into serving size pieces. Arrange in sauce, cover, simmer 20 minutes or until fish flakes easily.