Thanks for all your replies!
I was glad to see that we could get one skillet for both of us--based on the menu, I am more than sure that we could both get our fill from a single one.
Taking disneygirl's caution about the atmosphere, I searched some other threads about WC, and I'm thinking that if my mom got offended at the 50's Prime Time at DHS, this might not be the venue for her, so I will probably reconsider the ADR. Napkins and straws being tossed instead of set on the table probably would not be her cup of tea.
I just wanted an excuse to take her to Wilderness Lodge, so I may just swing by one day and try Roaring Forks for lunch. I assume there are tables there, that it's not just a stand. I've eaten at Artist Point several times, but never went down the ramp to check out Roaring Forks.