noun, verb, -roled, -rol⋅ing.| 1. | a baking dish of glass, pottery, etc., usually with a cover. |
| 2. | any food, usually a mixture, cooked in such a dish. |
| 3. | a small dish with a handle, used in chemical laboratories. |
| 4. | to bake or cook (food) in a casserole. |
