Types of desserts include ice cream novelties (or cups or cones, depending on the place); chocolate cake; key lime pie; carrot cake; light strawberry yogurt; cookies; apple slices; fruit.
Most of the desserts are pre-packaged and so you can take them with you. If you wish to have an ice cream dessert, you can have your receipt stamped by the CM and return just after you have finished eating your meal so your ice cream is fresh and does not melt.
IMO, the cookies are the best desserts you can get for travel, especially the sugar cookies and they are delicious!!