Knowing the menu and passing a menu test to ensure you are familiar with what items come on each individual sandwich to ensure top speed when preparing orders for customers

Reached out directly to the store, and had a casual 30 minute interview with the general manager where he asked me typical questions for an entry-level food service job. Very friendly and was clear that they were willing to hire any motivated applicant.

Pretty basic interview, they just needed bodies, don't expect too much as it's just restaurant style informal interview processes. Hours are flexible, people seemed nice enough, they just want reliability and consistency with your schedule. They don't have provided delivery vehicles so it's your own wear and tear.