Founded in 1983, Rubio's Fresh Mexican Grill serves made-to-order burritos, soft-shell tacos and quesadillas and salads made with marinated, chargrilled chicken breast and steak. The restaurant has more than 180 locations throughout the United States. In addition to steak and pork carnitas, its menu features seafood items including grilled mahi mahi and shrimp. Based in San Diego, Calif., Rubio's Fresh Mexican Grill operates, licenses and franchises more than 200 restaurants in California, Arizona, Colorado, Utah and Nevada.