Alex and I just had our first dining experience at Harvest on Fort Pond in Montauk and all I can think is "How did we not come here sooner?"
The restaurant is located right in the center of town and on the water next to Fort Pond. We didn't have a reservation but easily got a spot at the bar (full dining service available) and quickly received warm, fresh bread with a variety of accoutrements.
I took a walk outside to take in the scenery while Alex ordered us drinks.
Even better than the view was the food. I am not exaggerating when I say Harvest had some of the best pizza I have ever tasted (granted, I am not a huge NY pizza fan as I prefer a doughier crust, but even Alex agreed).
I would also note that we had the "small" pasta portion and took home half of the pasta AND half of the pizza for lunch tomorrow! Highly recommend a meal here during your Montauk stay.