Have you tried www.mouseplanet.com ? They used to have one of the best DL menu collections, though they weren't dated, so you couldn't tell how old they were. However, it should at least give you a pretty good idea of prices and offerings.
Personally.... I wouldnt bother eating dinner at the Napa Rose. We ( hubby and 10 year old daughter) ate there in June, I didnt even have a entree and the bill was $140.00 !!
I would recomend going there for drinks and appitizers.