Over Under - Party Game

2 pounds boneless, skinless chicken, turkey or pork cutlets (or use chicken thighs for even more flavor) ½ cup all-purpose flour 3 large eggs 2 to 3 cups panko bread crumbs, as needed Kosher salt, as needed Black pepper, as needed Olive oil, for frying 5 cups Simple Tomato Sauce (see recipe) 1 cup finely grated Parmesan, preferably Parmigiano-Reggiano ½ pound fresh mozzarella, torn into bite-sized pieces