Posted on June 10, 2020 This is a Greek/American lamb and beef mixture version of the traditional Greek pork or lamb Gyros (or Gyro). Serve on warm pita bread with tzatziki sauce, and thinly sliced onion, tomato and lettuce. This is a Greek/American lamb and beef mixture version of the traditional Greek pork or lamb Gyros (or Gyro). Serve on warm pita bread with tzatziki sauce, and thinly sliced onion, tomato and lettuce. Advertisement