Five Guys Burgers and Fries uses only fresh ground beef in their burgers, and their restaurants don’t even have freezers, only coolers, so nothing is ever frozen. They use only peanut oil in cooking their menu items, which are all trans-fat free. Of course, Five Guys serves menu items other than their variety of burgers, such as hot dogs, including Kosher and a bacon cheese dog, sandwiches like grilled cheese and veggie. In addition to their regular fries, Five Guys serve Cajun style. They also serve just plain peanuts in bulk, no charge.