going to be staying near hotel minneapolis for work
Are you looking for casual, or sit down? Most of downtown is very walkable, if you have enough time. For casual, I would say to definitely try a food truck. Vellee Deli is often in the 2nd Ave/6th Street area, and is great. Hola Arepa is sometimes near there, too. If you wander over to 2nd Avenue South between 5th street and 7th Street (or Marquette Ave. between those same streets), you'll have a lot of options.
For sit down that's on the fancier side, I would walk (or take a Nice Ride bike) to Vincent, which is about 7 or 8 blocks away and has a great 3-course lunch option (at least they used to).
I'm sure if you have more specifics about how much time/money you want to spend, and what kind of food you're looking for, you'll get lots more options.
Avoid Restaurant Max, in the Hotel Minneapolis. Slow and not good.