It's been a long time since I've been an Annual Pass holder so I made the most of my day and spent nearly 14 hours at Disneyland/California Adventure. If you decide to do the same, you should mind the dress code and prepare accordingly. For dinner, the rules suggest collared shirts and trousers for the men, and informal dresses or pants paired with a blouse for women. While I witnessed people in suits and cocktail attire, there were also a handful in jeans and short-sleeved collared shirts. I decided to wear a simple slip dress that could go from day to night and had no problems getting in.
I did not have the chance to ring the doorbell like so many people here, probably because I had the first reservation slot of the night. The receptionist popped out and asked for all the 5:30-people and admitted them accordingly. The lobby on the first floor is a small room, where the receptionist takes your coat. Take the French lift to the second floor where the two dining rooms are. There's the formal dining room and a trophy room, both with their pros. The dining room has a view over New Orleans Square and a larger space. You can also access the balconies from here. The trophy room has more interesting decorations. Be sure to ask for a tour or just take the time to walk around. The overall space of the restaurant is small so be sure to avoid the busy waiters/waitresses/bussers.
For dinner, you had a choice of the Vintner tasting or some a la carte entrees and appetizers. I did the 5-course Vintner, which changes seasonally, and at that time was "Celebrating the World of Color":
#1 Forest mushroom vol-au-vent, spiced mango cream: I think this was my favorite dish of the night. The flavors of the mushrooms were strong but not overwhelming and the puff pastry provided an excellent flaky foundation.