My fiance and I were visiting Madison and stopped in for a few slices of pizza. Ian's sells pizza by the slice or pie, and they have a very wide range of pizza toppings. We ordered 1. chorizo quesadilla, 2. drunken ravioli, 3. baked potato, and 4. pepperoni and mushroom. The slices are $4 each and well worth it. The ravioli pizza was absolutely incredible and easily the best slice we had - if i were to visit Madison again, I would definitely stop by Ian's for more ravioli pizza. The chorizo and baked potato pizzas were really good, but I think I'd like to try more of their other pizza styles/topping before going back to either. The pepperoni and mushroom was actually my least favorite (though this simple topping combo is my go-to), mostly because I thought the pepperonis were a little flaccid and disappointing.
Also important is that Ian's uses local ingredients and seems to treat their employees better than maybe some other fast food and pizza joints ($10/hr starting wages, bonuses, healthcare options). If these things matter to you as they matter to me, then there's even more reason to support Ian's. These practices earn Ian's an extra star from me resulting in 5/5 stars.