Hamburger Union

This London-based hamburger chain is a good choice for lunch or dinner to have an affordable, high-quality burger. Currently, there are 6 restaurants scattered around some of the most strategic points in London, places like Dean St (Soho), Garrick St / Leicester Sq (Covent Garden) or Tottenham Court Road. For about 7 or 8 pounds, you can get a menu that includes burger, fries, and a soda. The restaurants themselves are very friendly and very clean.