Katie's is most well known for their poboys. I think they have the best poboys in NOLA. It's worth noting that they are a little "creative" so some purists may turn up their noses. But I don't think they are especially adventurous, and remain true to the style by highlighting the bread and the protein (seafood and/or fresh meat). They do also have the purist classics as well, if you prefer, but my preferences are slightly more adventurous.