We grew up eating corned beef sandwiches where the corned beef was from a can. But when there is corned beef left over from a meal we love to make it in to Sandwiches the next day. You can use this recipe for both.
1 cup of corned beef shredded
1/2 cup Mayo
1 tsp horseradish sauce
1/4 cup Medium Cheese Shredded
2 T Pickle Relish
Mix all ingredients together. You may need additional mayo if the mixture is too dry. Canned corned beef often soaks in more of the moisture.