Franklin Terrace Cafe? (minneapolis)
I work in the office building where the cafe is located. It's a cafeteria for the people working in the building, so I don't think there are too many outsiders coming in there to eat despite that sign outside. (if it's still there?) The people running the cafe have changed in the past couple of years and the quality has improved. And it's not just sandwiches and soup. For a cafeteria in an office building, it's pretty high quality. Unfortunately, their website hasn't been kept up to date recently.
Oh wait, the better website is just www.franklinterracecafe.com