I had recently asked about a Nicaraguan restaurant on the near east side of Indy. Finding it was no longer there (thanks for the heads up), we opted to stop for a tenderloin at the Mug N Bun on W. 10th, nearer the airport. The sandwich was great--just as I remembered them. And the rootbeer is divine.
I have to say that it filled a longing. We midwesterners transplanted to D.C. frequently commiserate about not being able to get tenderloins here and try to find substitutes.
Of course, there are none.