In a small bowl, combine milk and egg.
In a shallow bowl, place breadcrumbs.
Dip ravioli in milk mixture and coat with breadcrumbs.
Fry ravioli in batches in heated oil for 1 minute on each side, until golden brown.
Remove ravioli from oil with a long slotted spoon and drain on paper towels. Sprinkle with grated Parmesan cheese. Serve immediately with warm spaghetti or pizza sauce.