W10

Who would have thought that putting some meat in between two pieces of bread would become such a phenomenon. The convenience of the sandwich has made it a popular restaurant must have. However, along with a good idea comes improvements and twists to keep it popular. The sandwich has had this happen; different innards, breads, grilled/cold. So when does it stop being a sandwich? I say that regardless the make-up of the "sandwich" it's still a sandwich if it has the easy to eat quality to it.

When a sandwich is made with bread, potato bread, bagels, or even something completely outlandish like two pieces of chicken (yes KFC's smack down was a sandwich consisting of chicken for bread) it is still a sandwich. I think when you use a pita however, it is a pita not a sandwich, also most pitas are more of an open-faced sandwich. Also with wraps, whether you are using tortillas or lettuce. when the food is in the center and the lettuce or tortilla then wrapped, it is a wrap. Which then makes me question the burrito...it is very similar to a wrap same innards, the only difference would be how the tortilla is manipulated. Alas, non of then should be considered sandwiches.
As for the quesadilla that is a tricky question, It does have a top and bottom, yes they are tortillas but the are not folded or rolled. For this particular question I have to play the nationality card. It could be a very flat sandwich; however it has a Mexican history as a quesadilla therefore we should respect that culture and treat it as such.  
In conclusion a sandwich can hold many forms, as long as you do not need a fork and knife to eat it. And I say if you make it you can call it whatever you want.