I love Clems. Just had lunch there last Tuesday, but it's pretty far out from the city. My favorite is Two Brothers, just off of interstate 79 in a little town called Presto. Problem is it's take out only, but the 'Q is worth it!
If you are in the Cheswick area, Allegheny 6 Pack & Dogs have Holy Smokes Cafe cooking on Fridays, Saturdays and I think Sundays. Holy Smokes also cooks at Cheswick Presbyterian church on Sundays. www.holysmokescafe.com