They do not use the dining plan- you will probably have no problem getting up with your KTTW card but they may ask for a member card and you would not be able to go up if they did that.
As of yesterday they had: beef and goat cheese flatbread(we like it although it is not as good as the BLT that isn't on the menu right now), shrimp cocktail (did not sound like a regular one according to the menu), chicken sliders (DH loved these), pretzels with 2 sauces (one is a spicy sweet and the other a mustard), they also have a vanilla cream brulle (it was excellent), and a cake for 2 (my favorite item on the menu and we shared it easily for 7 of us after a meal). They also had a nacho plate and a pb&j sandwich on the kids menu.