With the regions, Kingdoms and countries of GRRM's world influence by Britain and Europe are the any regional foods similar to the area in question or just regional foods in general?
e.g. Haggis north of the wall
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There are some, not so many. While of course given the cultural and ethnic diversity along with relative isolation of the people one would expect full fledge cuisines for every Kingdom but that is not really the point of the story so GRRM doesn't dwell on all that too much. To cite a few food items that are explicitly tied with one region:
Actually the books go in some detail describing food and dishes. At the Inn at the CrossRoads blog you can find the list of food referenced in each region and the attempt to recreate the recipes. Assumption goes what is referenced in the text tends to be typical of the location.
Bonus track, there is a kind of official recipes book for Westeros endorsed by GRRM (up to you to decide if it makes it canon or a smart marketing stunt): A Feast of Ice and Fire.