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.
I applied in-person. The process took 2 days. I interviewed at Subway (New Bedford, MA) in Nov 2014
Interview
The interview lasted about fifteen minutes. We went over job duties including the fact that no one person did anything specific, everyone does a little bit of everything and hourly wage.
Interview questions [1]
Question 1
What one quality do you think I'd want to see in a prospective employee?
Straightforward and professional with typical fast food interview questions. Friendly and easy to talk to interviewers. Reasonable length and in person made it more comfortable. Great experience and easy interview.
Was pretty average hospitality interview process, focus on customer service in a fast paced environment, how to deal with stress, team work/ collaboration, company values, and your past experience. and availability etc.