I've been to Uncle Sal's for both lunch and dinner, and have never been disappointed. The food has always been great, as well as the service. The place has been around for a long time, and through several owners, but you have to give the place credit for being owned at one time by the wife of John Gotti. Not many out-of-towners may know that after Gotti testified against the mob, he was placed into the witness protection program and relocated to Tempe.
Uncle Sal's is a little difficult to locate (as are most mob hangouts). It's located in an unassuming strip mall, which doesn't add to the credibility of the restaurant, but Sal's is an exception. I've taken family, friends and friends of friends to Sal's and everyone loved it.