We were there almost 4 years ago so my memory might not be too good on this...but it seems like we noticed that some of the same offerings (such as sandwiches, wraps and salads) from Whispering Canyon were at Roaring Forks for a much cheaper cost.
It wasn't the entire menu of Whispering Canyon, but we noticed several common items. Roaring Forks is rather small in size but don't let that fool you, they have a great variety and selection. It's more than just a place for burgers.