A sandwich is a sacred art form. It should not be dictated by any recipe or adhere to any set type. It's a child of necessity and desire, born of what you have and what you want. Yesterday I made a sandwich out of a piece of baguette, peri peri chicken cold cuts, provolone, tomato, and mayo and sriracha. It was perfect. But tomorrow it may not be perfect. Tomorrow it might need lettuce. It might need bacon, tuna, or egg. It might need none of the above. There is no best sandwich. There are infinite best sandwiches. Adapted and created to the infinite possible states of the universe at any given time. The perfect sandwich is a quantum state of every possible sandwich; the wave function only collapsing into a single sandwich when observed at the particular moment in time it is needed. Sandwich.
Yeah boo Quiznos and Subway for trying to force industrial uniformity on people. (Even though I work for Quiznos...oops)