The main ingredient in a traditional moussaka is eggplant. This savory dish, which is popular in Greek and other Mediterranean cuisines, typically layers sliced and roasted eggplant with ground meat (often lamb or beef), a rich tomato sauce, and a creamy béchamel sauce on top. Eggplant adds a unique flavor and texture, serving as a hearty base that contrasts beautifully with the meat and sauce layers. Depending on regional variations, some recipes may include potatoes or zucchini. The dish is baked until golden, making it a flavorful and comforting meal, often served in Greek tavernas and family gatherings.