A casserole is a versatile kitchen dish designed for both cooking and serving. It’s typically a deep, ovenproof container made from materials like glass, ceramic, or metal, often with a matching lid. Casserole dishes come in various sizes and shapes and are used to prepare a wide range of one-dish meals, from savory classics like lasagna and baked chicken to sweet treats like bread pudding. The term “casserole” also refers to the cooking method, where ingredients are combined in a single dish and baked together in an oven. This method allows flavors to meld and ingredients to cook slowly and evenly, resulting in delicious and convenient meals that can feed a family or a gathering of guests with ease.