More recent food....
The Burrito van that turned up to a few games last year was also superb. Unfortunately the food type isn't popular enough amongst the masses that just want a burger or some chips, so I suspect it wasn't sustainable to keep it there. Real shame as I thoroughly enjoyed one every time it was.
The hog roast tent was also a beauty, another one I was really sad to see disappear.
They had that British Burrito van there for one home game this year (Halifax I think?) which was a welcome change. Personally I can't be bothered with the standard crap burger, hot dog or chips. Those that are a bit different, I'd happily spend my money on every Sunday.