You can definitely freeze baked crab cakes without losing its flavor or texture. As they are quite delicate, be careful when handling them to keep their nice round shape. The best thing to do is to freeze them soon after preparing. To not stick to each other, you can first lay them on a paper sheet and put it to freeze. Then you can collect them and store them together in a freezer bag. Before reheating, be sure to thaw them completely, and if you have time, leave to adjust to room temperature.