In L.A., the Gumbo Pot at the Farmer's Market at Fairfax and Third is the best cajun I've had in the area, including their po-boys. They have an amazing cat-fish po-boy, as well as oyster. Order at the counter, outdoor seating. Really good raw oysters this time of year, 99 cents a piece. Almost as good as the Gulf Coast food I ate growing up, but not quite.