Niro's Gyros has some of the best gyros in Knoxville. It's right off of the UT Strip. Since it caters to students the place has great food but little ambience.
Students will have an easier time walking in than you will driving. There are a few parking spaces in front of the door. If they're full you have to park where you can. The terrific food is worth the effort.
My family loves Niro's Gyros.