With the exception of some Quebec foods, I find it hard to identify foods that are uniquely Canadian. I looked at Le Cellier's menu and didn't see anything on it that was Canadian other than the source of some of the fish/produce.

The things that I think of as uniquely Canadian are all Quebecois - Soupe aux pois, tourtiere, tarte au sucre, poutines, ragout de boulettes, and even most of these (except tarte au sucre and poutine) are 18th century French recipes which survived here long after they died out in France.