The primary ingredient in a moussaka is eggplant, also known as aubergine. This traditional Mediterranean dish, particularly associated with Greek cuisine, layers sliced and often sautéed eggplant with ground meat (usually lamb or beef) and a rich béchamel sauce. The eggplant serves not only as the defining flavor but also adds a creamy texture to the dish. Variations of moussaka may include other vegetables or ingredients, but eggplant remains the cornerstone. Baked until golden and bubbling, moussaka is a beloved comfort food that embodies the essence of Mediterranean flavors.