Operationally, it???s a fast-casual kind of place???to start, you check off what you want on a menu sheet heralding 100 montadito varieties (in this case, fashioned mostly in daily baked 4-inch rolls) with such ingredients as Serrano ham, piquillo peppers, Spanish olives and manchego cheese???but Spanish beer and wine are offered along with sangria, platters and appetizers served in an indoor-outd