Got it - apologies that I misinterpreted your original post.
I've posted about these places in the Champaign thread, but to summarize some recommendations for Champaign/Urbana:
Place not to miss: Seaboat (fried fish - note that their new address is 403 W Kirby Ave, Champaign; references to a so-called bad neighborhood in the Champaign thread refers to their previous location.)
Fine dining: Bacaro (excellent seasonal Italian; great wine list.)
BBQ: Lil Porgys (two locations, aquarium smoker, stick to the ribs or tips, specials are sometimes good too, quality can be uneven); Black Dog (excellent, trendy, crowded, lots of bourbons, did I say crowded?)
Other:
Bread Company: great place for lunch or dinner (different menus). At lunch they have excellent sandwiches on homemade bread. At dinner, get the fondue or raclette and supplement with other things.
Timpone's: good Italian restaurant, nice for lunch or dinner. But if I had one or two meals in town I'd pick from the above. If you go for lunch, the pizzas are excellent. Pastas are very good also.
Radio Maria: Interesting, eclectic food.
Pizza: there are some good pizza places in town (Manzella's, Timpone's, Papa Del's).
Beer: The Blind Pig. Full stop.
There is also a restaurant/brewery called Destihil, though I wouldn't go there if you only have a few days in town.
There are a lot of Korean, Chinese, and Thai restaurants, a couple Indian places, and a handful of other types of Asian restaurants. In my experience, none of the Thai places are good (even by Americanized Thai standards). Peking Garden in downtown Champaign is quite good. The Korean places tend to be good; Woori Jib right off campus is my favorite. As a general rule, stick near campus for these restaurants; skip Japanese restaurants (go to Bloomington).
Skip Luna & Escobar's. I've had many meals in each and have found them to be mediocre and uninspired. Luna used to be very good, but it has been a few years since I had a great meal there.
Finally, downtown Champaign is fun on summer evenings. A lot of bars/restaurants have outdoor seating.
You might also try to visit
Prairie Fruits Farm.