Remove ravioli from freezer. Do not brush off flour that was sprinkled over them before freezing. Pour milk in a small dish. Place bread crumbs in a small dish. Heat oil in a deep fat fryer or pot to 375 degrees F.
Dip frozen ravioli in milk. Then dip ravioli in bread crumbs. Deep-fry ravioli in hot oil until done, about 3 to 4 minutes, or until golden brown. The squares will sink at first, then rise to top of oil when done. Turn squares as they fry to promote even cooking. Remove from oil; drain well. Sprinkle at once with Parmesan cheese. Serve as is, or with a tomato sauce, meat sauce or butter sauce.
Note: Canned, brine-packed ravioli, well drained, can be used.
