Call them thin buns, sandwich thins, slim sandwich bread, sandwich flats they are the same, just names that companies come up with to market their brands. If you have not seen them, then think of the regular old chubby buns minus the extra trimmings and you have a thin sandwich bun. I like the name Sandwich Flats the best and refer to them that way. They are thin yet hearty just 100 calories each and perfect for a light lunch as sandwich or even a quick snack. I like to have this as sandwich with layer of Guacamole. Guacamole is…