Moussaka recipe: layers of eggplant, potatoes, and a spiced meat sauce nestled in between. Comfort food, Greek-style!   The epitome of Greek comfort food, moussaka is basically a hearty eggplant casserole with a juicy, flavor-packed meat sauce. Topping the meat is either a rich bechamel sauce-- a French influence that was introduced later--or, as in today's Moussaka recipe,