I came to Mt. Horeb in 2012 and twice in 2013 to bicycle the hills in the area. A favorite stop for dinner was the Grumpy Troll. Their beer cheese soup is the best in the state. It's made with andouille sausage, which spices it up, and has just the right amount of cheese. The corn bread muffins that accompany the soup are great.
I've also had the burgers, pizza and walleye sandwich. These are good but not outstanding.