Casseroles are insulated serving dishes used to keep food warm.
This type of casserole is often referred to as a "hot pot" or "thermoware".
Casseroles are typically made of insulated stainless steel or other materials to maintain the temperature of the food inside.
They are commonly used for serving hot food at the table, especially in Indian households for dishes like rotis, chapatis, and curries.
The casserole in the image has a floral design and a lid with a handle.