Normal Sun Chips(which are incredible with a meatball sub)
Congratulations, you just described 70% of what I got for myself for my lunch break when I used to work at Subway.
The other 30% is for trying new sandwiches before we officially offered them, getting tired of the meatball sub (which is pretty hard to do), and of course, eating my own stupidly insane concoctions (Try looking for a Pastrami-Cheesesteak-Meatball-Pepperoni-Marinara-Bacon-Ranch-Parmesan-Oregano-BBQ Cheddar Supreme on the menu.....).