Serious Eats: Talk
Supposedly, what's between the bread can foretell how long you and a partner will stay between the sheets. For the record, bologna isn't one of the options; neither is grilled cheese.
For the article, go here:
For the personality traits that go with the sandwiches, go here:
I'm a Libra/club; he's a Saggitarius/BLT; 21 years.