Dice Fontina PDO and remove the rind.
Beat the eggs in a bowl, add salt, and pepper to taste. Add milk and Fontina PDO.
Butter a baking pan and place the polenta slices on it.
Alternate the polenta slices with the egg and Fontina PDO mixture until all the ingredients have been used up. Bake in a preheated oven at 180°C and allow to brown.