I applied online. The process took 2 days. I interviewed at Subway (Sacramento, CA) in Aug 2015
Interview
Sat at a dinning room table and he asked me about my work past and when I could work. He did not quiz me on how I would act with a difficult customer he just wanted to get me hired asap
I interviewed at Subway (Barnsley, South West England, England)
Interview
I was sat down and asked questions about myself in a possible manner in the middle of the restaurant as people dined around me. I was then instructed to cut bread so they could see how well I could do.
Easy flow, face to face and they are quite patient with you. The manager are understanding if it's your first time and let you through the flow of the process
Very simple and straightforward. Normal questions like availability, have you worked in food service before, etc. I think it depends on location though since friends at other locations have had more substantive or less substantive interviews.