When it comes to tossing around dough, no one does it more often than Pizza Hut. The unit of YUM! Brands operates one of the world's largest pizza chains with more than 18,400 outlets in more than 100 countries worldwide. The chain serves a variety of pizza styles, including its flagship Pan Pizza, as well as Thin n' Crispy, Stuffed Crust, Hand Tossed, and Ultimate Cheesy Crust. Other menu items include pasta, salads, and sandwiches. Pizza Hut offers dine-in service at its characteristic red-roofed restaurants, as well as carry-out and delivery service. Only about 1% of the restaurants are company-operated, while the rest are franchised. The world's largest fast food company, YUM! Brands runs KFC and Taco Bell in addition to Pizza Hut.