Grated Parmigiano-Reggiano is a hard, granular cheese made from cow's milk, originating from specific regions in Italy, including Parma, Reggio Emilia, Modena, and parts of Bologna and Mantua. It is known for its rich, nutty flavor and is often used as a topping for pasta dishes, salads, and soups. The cheese is aged for a minimum of 12 months, with some varieties aged for up to 36 months or more. This aging process enhances its complex taste and texture. Parmigiano-Reggiano is often referred to as the "King of Cheeses" and is a key ingredient in many Italian recipes.