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|Founded||December 7, 1982
Newport Beach, California, U.S.
|Founder||Doug Cavanaugh, CEO
Ralph Kosmides, Chief administrative and development officer
|Headquarters||Irvine, California, U.S.|
|California, Pennsylvania, Hawaii, Nevada, New Jersey, and Texas|
|Parent||Ruby Restaurant Group|
Ruby's Diner is a restaurant chain aesthetically designed after American diners of the Swing Era. Ruby's Diner serves breakfast, lunch and dinner, with a menu that includes classic American diner fare of hamburgers, French fries, chili and milkshakes along with soups, salads and sandwiches. As of October 2017, Ruby's Diner operated at 35 locations in Southern California, New Jersey and Pennsylvania, and in airports in Houston and Las Vegas.
While the basic decor remains the same for every Ruby's Diner, creative touches are added to many by developing modified themes to fit the local area. For example, the Ruby's AeroDiner in Laguna Hills (located near the former El Toro Marine Air Base) has a collection of miniature World War II aircraft that "fly" through the restaurant on a track.
The first Ruby's Diner opened on December 7, 1982, in a converted bait shop at the end of the Balboa Pier in Newport Beach, California. On that day founders Doug Cavanaugh and Ralph Kosmides worked the grill and the cashier station and earned $63.
Ruby's Diner has locations on the historic Southern California piers of Balboa Pier, Huntington Beach Pier and Oceanside. A former Ruby's Diner at the end of the Seal Beach pier, which was closed in 2013, was destroyed by a fire on May 20, 2016.
In 2013, Ruby's Diner introduced Ruby's Dinette, a 1960s themed fast casual concept, and began opening restaurants under this name and style starting in the Westfield Plaza Bonita shopping mall in National City, California.
Ruby was the mother of founder Doug Cavanaugh. The Ruby girl cheesecake character was derived from a photograph taken of her while cheerleading for Fremont High School in Los Angeles. In recognition of Ruby, every Ruby's Diner location has a picture of Ruby's high school graduation picture near the cash register.