Beginning April 21, people throughout the U.S. can enjoy a salad in an exciting and different way. McDonald's is introducing the McSalad Shaker at restaurants nationwide -- an innovative and convenient approach to eating salads like never before. The McSalad Shaker is served in a tall, clear cup with a domed lid that allows customers on the go to pour on their choice of dressing and shake it up, spreading the dressing evenly throughout.