I was visiting Oregon, Wisconsin from California and went to Senor Peppers on a tip from a local. It was a friendly, cozy place in the renovated town center with a menu loaded with the usual Mexican-American stuff. In addition, there are some dishes off the beaten path. I especially liked that their drink menu included horchata, a drink that I usually find indicates that someone from Mexico has had a hand in creating the menu.
Portions were big and the place was full of locals on a Monday night. Clearly it's popular, and not undeserving of this honor. It's casual and an easy place to take children. I'll go back when I'm hungry for heavy food.