Remove frozen lasagna from packaging and cut into 6 equally sized pieces.
Set up a dredging station with three bowls — flour in the first one, eggs and milk in the second one and breadcrumbs in the third one.
Coat each lasagna cube in flour, submerge in egg wash and cover in breadcrumbs. Repeat this step a second time if necessary and freeze for at least another 30 minutes.
Heat oil in deep fryer or heavy skillet to 375°F and fry lasagna cubes in batches for 5 minutes or until cooked through.
Drain on paper towels and serve with marinara or your preferred dipping sauce.