I mean, yeah, it CAN be a mono thing, I guess, but the whole point of a sammich of things complementing other things is the plurality, right? Like sure, you CAN do just a HAM sub, but the PROMISE of a sub is "what if that ham lay underneath capocolla and a spicy dry sausage, and how does THAT blend of things blend with white cheeses and peppers and onions and olive oil and maybe wine vinegar?"
Miscegenation of the sandwich. It is the way.
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