I applied in-person. The process took 1 week. I interviewed at Subway (Orlando, FL) in July 2013
Interview
Got a call relatively fast and the interview was very short. Just sat down with a store manager and she asked me very basic questions. If was very relaxed and I showed up over dressed. The manager was very friendly and explained the job very well. I had a good time at the interview.
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.