Place fish fillets in a single layer on heavy duty foil, large enough to fold over and seal all ingredients.

Melt ¼ c. butter

Stir in 1 tsp lemon juice, 1 tsp Worcestershire sauce and 2 tbsp minced onion

Add 1 tbsp bread crumbs and 1 tbsp grated Parmesan

Blend well and spoon over fillets.  Fold in edges of foil tightly to seal.  Bake at 400 for 15-20 min, time may vary with thickness of fish.