Greek moussaka is similar to Turkish moussaka, but there are some key differences in the ingredients and preparation. One of the main differences is that Greek moussaka typically includes a layer of bechamel sauce, which is made from flour, butter, and milk. Turkish moussaka, on the other hand, does not include this layer, and instead relies on a tomato-based sauce for flavor and moisture. In addition, Greek moussaka often includes potatoes in the layers, while Turkish moussaka typically only includes eggplant. These differences result in two distinct dishes that are both delicious in their own ways.