My girlfriend and I each had the filet with maple bbq sauce. It doesn't appear to be on the menu any more. It came with the mashed potatoes and it was absolutely incredible. We'll be at WDW next week, but chose not to eat at Le Cellier because the maple bbq filet is gone.
I also loved the cheddar cheese soup and pretzel bread. In fact, I liked the soup so much that I made it at home (the recipe is in my Cooking with Mickey cookbook).