When I began coming south years ago I noticed something right off the bat, I had to ask for my buns to be toasted. If you don't toast the buns, call it a "Hero" or a long assed sandwich but not a NY sub.
Don't smother it, we want a toasted outside with a soft inside.
Gather up your garden, anything goes.
Grab anything else you want on your sub, I'm a carnivore so...
Don't be stingy, topped with hot chili sauce & there you have it.