Is there a big difference between the lunch and dinner menus other than price? We prefer to eat bigger at lunch, but if there are some "not to be missed" items served only at dinner, we'll go then.
You can compare the lunch and dinner menus here: http://www.wdwinfo.com/wdwinfo/dining/search.cfm Choose Le Cellier and both lunch and dinner will come up. I'm not sure if this the newest menu available, but if not it is a good representation.
We also like our large meal at noon, we ate at LeCellier in June for Lunch, they had a steak special that was delicious. It is true that the ambiance of the restaurant is more "dinner-ish" but if you like you big meal at noon, it is wonderful also.