What’s wrong with sammiches? If you disassemble a sammich, you’ve got some bread and some meat and some cheese and some veggies. I thought these things were good for you. Is there something about about stacking them on top of each other that makes them unhealthy? Same argument for hamburgers as far as I’m concerned.
Bread[especially white] is digested vary fast by the body. Making a sanwich is pretty much like pouring table sugar over your meat and veggies.