Mix together garlic, salt, oregano, basil, thyme and pepper. Stir in onion, lemon peel and lemon juice. Tear off 1 sheet of 18-inch heavy duty aluminum foil twice length of fish plus 3 ; place foil in baking pan with half the piece extending over the edge.
Place fish on foil; pour marinade over fish. Bring extending part over and seal on 3 sides with double folds; refrigerate 1 hour. Bake in 375° F oven about 45 minutes.Servings: 6 to 8