Re:Bengals Pregame ?
There is a bar directly across from the stadium, called HeadFirst (3rd St.), and they usually have someone set up on the side of the bar selling some kind of food (BBQ or burgers & dogs~nothing fancy).
O'Malley's food is not all that, but I really enjoyed their salami "smashie", which is kinda like a panini.
I really enjoyed Moerlein Lager House, and didn't think it was that expensive, for what we got. Great quality, everything made from scratch. I was expecting mediocre food, but it was so much more. I was very impressed.
Since they do tailgating on Fountain Square (5th & Vine Sts.), you may find some food trucks there, as well.