Couldn't we use....
¿Que trae el sandwich?
To find out what else is included with the sandwich? Or what other ingredients are in the sandwich? For example,
Jose and Maria are at a restaurant deciding what to eat.
Maria: Este restaurante tiene muchos sandwiches en la carta. Mira tienen el Mona Lisa, el Shakespeare, el VanGogh, etc...
Jose: ¿El Mona Lisa, qué trae el sandwich?
I think it could work, wouldn't it?
Elaina