Crocchette di patate con cuore filante

Crocchette di patate con cuore filante (Potato crochet with cheese centre) 400 grams of boiled potatoes 1 tablespoons chopped parsley 1/2 cup breadcrumbs 2 tablespoons corn meal 1 egg 1/4 cup grated parmigiano 1 tsp of salt 1/4 tsp pepper Strips of mozzarella cheese