Ramsay's 'mistress' appears on TV show

Gordon Ramsay's alleged mistress has made an appearance on the season finale of Hell's Kitchen.

Sarah Symonds, with whom Ramsay is accused of having a seven-year secret affair, appeared on last night's finale of his US reality show.

Symonds can be seen dining alone before filling out a feedback card. Her appearance was filmed in 2008, during the period in which the alleged affair took place.

Earlier this year, a report claimed that Ramsay and wife Tana are planning to renew their wedding vows.