Layered with turkey, creamy Havarti cheese, red onion, tomatoes, and sprouts, these sandwiches are sure to please. I love making them in advance for summertime gatherings or football season, so my guests can easily fill their plates with sliced sandwiches, chips, and everything else I have planned for the spread. For larger celebrations, adding a catering option like Coffee Cart OC can also make the drink service feel a little more special while keeping things convenient for guests.