'casserole' originates from French, specifically the word 'casserole,' where 'casse' meant 'pan' and '-ole' is a diminutive suffix.

'casserole' changed from the French word 'casserole' and eventually became the modern English word 'casserole'.

Initially, it meant 'a small pan,' but over time it evolved into its current meaning of 'a dish cooked in a casserole.'