A few weeks ago my friend and I (both from Chicago) spent a weekend in Maine. It was a chilly weekend so naturally we wanted to make it up by eating a ton of yummy food. Joshua's did the trick. We actually ate there two nights in a row because we didn't want to risk being disappointed the second night!
I had thee lobster pot pie one night and then lamb the second night. My friend had haddock and then the vegetarian gnocchi dish. Everything was incredibly fresh and had lovely flavor. I am still dreaming about the lobster pie! The gnocchi were so tender they melted in your mouth. The mashed potatoes rocked my world and, generally, all of the vegetables were perfectly prepared. Everything was truly amazing. We appreciated especially the flavor and texture of the different broths we tried, which came across as rich in flavor but not too rich. Every dish seemed so carefully conceived and constructed. Even though there was a packed restaurant, there were no corners cut, etc. - a sign of a quality institution.
One night Joshua also had yummy cosmos made from strawberries grown on their organic farm. He recommends going there in the high vegetable season later in the summer because they are able to all (or mainly?) the produce grown on the family's land (just a hop, skip, and a jump away from the restaurant).
This place is such a gem, and the Mather family creates an elegant atmosphere without being stuffy or overpriced. Make sure you call ahead to reserve though!