Lou Malnati is a well-known pizzeria chain based in Chicago, famous for its deep-dish pizza. Founded in 1971 by Lou Malnati, the restaurant emphasizes high-quality ingredients, including a buttery crust, fresh mozzarella, and a rich tomato sauce. The chain has expanded significantly, with numerous locations across the Chicago area and beyond. Lou Malnati's has become a staple for both locals and tourists seeking an authentic Chicago-style pizza experience, often praised for its consistency and flavor.