Beans and Barley, Milwaukee WI
Beans and Barley is very reliably good. Not out of this world, but very good. Since your friends know of it, I assume you too know that it's primarily vegetarian. But, they have some good chicken dishes.
Here's the link.
(I don't know if it was just me, but when I used IE the menu link was a problem. No problem with Mozilla).
As you can tell from the menu, it's sandwichs and salads. The chili and soups are usually great. I haven't been in awhile, except for breakfast, hence no recs other than what I've noted.