What is “fast food”? What eateries do you think of when you hear the phrase, “fast food”? Here are six restaurants: McDonalds, Pizza Hut, Taco Time, Subway, Noodles and Company, and Einstein Bros. Bagels. Are they purveyors of fast food? And here are five foods: French fries, hamburgers, vanilla shakes, potato chips, and pepperoni pizza. Are these foods all examples of the dreaded fast food?