Quick's Hole in Woods Hole: good pork tacos
This is probably the best food in the village of Woods Hole, which isn't saying that much (you can spend more money and/or get worse food almost anywhere else). They specialize in fresh, well-made tacos and burritos, and they have a liquor license (just beer and wine), and the atmosphere of a friendly take-out shop with a bar and a few tables, including an outdoor area.
The best thing I've eaten there is the pulled pork tacos: meaty, savory pork; tangy, crisp red-cabbage slaw, just the right amount of a crema-like "secret sauce", and fairly good corn tortillas (you can get flour too, but the corn are better). They are wonderful: tasty, filling but not groan-inducing, and freshly made. The lobster taco is very good as well, and the chicken and veggie tacos are just fine.
Not as good is the fish taco, made with fried fish. It's too much fried (thick, greasy batter) and not enough fish. Also worth skipping are the sweet potato fries, which are the all-too-common thick, limp and bland variety. It seems like whoever's running the fryolater just needs more training, and things will improve.
The tacos come with slaw or hot chips, and since the tacos themselves have so much (tasty) cabbage in them, I usually go for the chips, which are good but not amazing. They have a salsa bar, with mild, pico de gallo, and "no joke hot." I have not yet been brave enough to try the hot one, but the other two are quite nice and fresh (none of the pasty jarred stuff).
Quick's Hole is not super-cheap, but reasonable given the quality of the ingredients. Tacos are $9.00 (except the lobster, which are $15.00). They tout their support for local foods, and they have very cool recyclable and compostable cups, utensils, and containers.