Make a rich pie-dough; line a deep pie-dish with the paste and let bake. Then fill with chopped boiled fish, oysters, shrimps and some chopped mushrooms. Sprinkle with salt and paprica and the grated peel of a lemon. Pour over ¼ cup of melted butter and the juice of ½ lemon and a beaten egg. Then cover with the dough and let bake until done. Serve hot.