Cassolette

A cassolette is a small porcelain, glass, or metal oven-proof container used for the cooking and serving of individual dishes. Cossolette might have lugs or a short handle. The word also refers to dishes served in such a container:Cassolettes ambassadrice: A ragoût of chicken livers with a duchesse potato border Cassolettes bouquetière: Creamed vegetables topped with asparagus tips and cauliflower... (Wikipedia)