I go here for undergrad! Black Dog's been mentioned and it's pretty darn good. Burnt ends are the way to go if they haven't sold out for the day yet. (They have two locations, so go to the one in Urbana, I heard it's better) Courier Cafe is cute and quaint. 7 Saints in downtown Champaign is awesome - sliders are the bomb. They also have a good combo platter meal that allows you to get a slider, side, and soup or salad for like $10 I think? There's also a bar for after-interview purposes 😉 Cream and Flutter is also nearby - gourmet cupcakes. Maize and Dos Reales is great for Mexican food. If you're feeling fancy, Biaggi's is Italian (pasta and fancy pizza) but sorta pricey.
Green St by the main quad (we have 3!) is our "main" street, lined with bars and chain restaurants like Chipotle, Noodles and Co, McDonalds, Subway etc. We also have a large Asian population so there is a plethora of Chinese and Korean restaurants to choose from as well. If you like sushi, our best sushi restaurant is on Green St and it's called Sakanaya. Waits for tables can be an hour long or so, that's how popular it is.