Hamburger and Sonic also rely heavily on hamburger sales. Fuddruckers and Red Robin are hamburger chains that specialize in the mid-tier "restaurant-style" variety of hamburgers. Some restaurants offer elaborate hamburgers using expensive cuts of meat and various cheeses, toppings, and sauces. One example is the Bobby's Burger Palace chain founded by well-known chef and Food Network star Bobby Flay. Hamburgers are often served as a fast dinner, picnic or party food and are often cooked outdoors on barbecue grills. A high-quality hamburger patty is made entirely of ground (minced) beef and seasonings; these may be described as "all-beef hamburger" or "all-beef
Hamburger Burger King. Most burger shops have also adopted a pizzeria-like approach when it comes to home delivery, and almost all major fast food chains deliver. In the former Yugoslavia, and originally in Serbia, there is a local version of the hamburger known as the "pljeskavica". It is often served as a patty, but may have a bun as well. Throughout Belgium and in some eateries in the Netherlands, a Bicky Burger is sold that combines pork, chicken, and horse meat. The hamburger, usually fried, is served between a bun, sprinkled with sesame seeds. It often comes with a specific "Bickysaus"