One of the things I miss most about my old college town, Ian's Pizza. The cool bars, the good sandwiches and the good vibe of the city are others, but their mac n cheese pizza is right in this list. Other favorites include the philly cheesteak or the black bean, feta & avacado.
Young and hip staff and typical college pizza place decor. At bar time, the lines can build up, but the waits usually are not too long. They always have a ton of pies made and just need to heat up your slice and charge you before you stumble back onto state street with your slice in hand. I think slices are like $3.50 which is just a killer deal!
A must stop for me every time I am back in town.