Tenderloins in Lafayette Indiana
Not in Lafayette, but near. Fisher's Restaurant, a tiny little dive in Flora, has some of the best tenderloins around - both fried and grilled. They're a little thicker cut, not pounded out as most, but awesome breading (not too much) and flavor. Fishers also has the best filet mignon I've ever eaten at a restaurant and under $12 for the petite cut.
Another good place for tenderloins is Top Notch in Brookston.
I agree about Fisher's. I'd also add that their cheeseburgers are great. Probably second only to another dive here in Indianapolis. They have a 6-oz one and a 13-oz one. I'm told they grind all ther beef on-site.
I heard a rumor that Fisher was selling the place. If that's true, I hope the new owners don't change much.