About For more than 28 years, Ruby’s Diner has offered a glimpse back to the 1940s with bright red vinyl booths, white Formica tables, soda fountains and colorful Coca-Cola posters that echoes the fun swing era. Signature Ruby’s menu items include all-American diner fare, fresh salads, delectable milkshakes and desserts. Ruby’s Diner has 42 family-friendly locations in California, New Jersey, Nevada, Hawaii, Pennsylvania, Texas and Washington . Ruby’s Diner is a privately held company, headquartered in Irvine, California. Visit Ruby’s online at www.rubys.com.