You can find restaraunts within moments of public docking at:
-Wolfboro
-Center Harbor
-Weirs
-Merideth
-Alton Bay
...I also recall hearing about a restaraunt on an island in Moultonboro/Tuftonboro that runs seasonsally.

The Canoe is just up the hill from the Center Harbor docks. They always had great food. Haven't been there in a while though.