Fish pies, traditional and otherwise, are a varied lot. There are elegant lobster pot pies, frozen fish pies from the supermarket, and “stargazey” pies with rings of cold eyed fish faces to challenge even the hungriest diners.( You can see a scary picture of one, below.) This fish pie is none of these. It is humble, but not entirely so, because, at least in my book, nothing with shrimps in it can be counted as…