I know people who work there so I go very regularly, but as a vegetarian I am probably not a lot of direct help to you, but I really want to suggest always asking the server what is best that evening. We have always had the best luck with this especially since one of the teens in our group loves the oyster shooters, and those are very good to have at their best!
My favorites
Salads; French Quarter and the new pomagrante dressing one
Appetizer: I love the garlic bread YUMMY!
For main dishes: the only thing I heard was mediocre was the rosemary chicken otherwise I have heard great things about the Sirloin, Catfish, Salmon and the Lobster Ravioli. I tend to get sides or ask the server to make me something special.
Save room for dessert!!!!!!!!!!!! I hear the Bread Pudding is fantastic (I am not a huge fan of it myself but its just not my thing), of course the Bananas Foster that is made at your table and just about anything on the dessert menu.
I really love to eat out out on the patio at night its a nice view and good for people watching and you can see the fireworks (not the castle though).