Sidetrack has been one of my favorite restaurants since I live in Ypsi several years ago. Their burger has been rated as one of the best in the country by GQ magazine and their sweet potato fries are awesome! I have never had anything at Sidetrack that I didn't enjoy and they have a really nice selection of wine, beer and liquors. It's not a huge place, but it's cozy and fun, and the staff is friendly and efficient.
For a little under $20 (not including tip) you can get a cheeseburger, sweet potato fries, a drink (I had the hard cider on draught) and dessert.
Next time you're in the Ann Arbor/Ypsilanti area, I highly encourage a stop at Sidetrack!