Stuffed mullets

Preparation:

Preparation: Clean the fish by removing the heads and bones. Arrange it in a baking dish with melted butter. Slice the onion and brown it in a piece of butter, add the sliced mushrooms and the shelled prawns; add salt and cook for 10 minutes adding chopped parsley. Stuff the fish with this mixture, cover them with more melted butter and cook for 40 minutes.