Moosewood on North Cayuga Street in Ithaca is one of the more historically significant restaurants in American vegetarian cuisine, which is either context you care about or it isn't, but it's accurate either way. The restaurant opened in 1973, produced a series of cookbooks that changed how non-meat cooking was approached in home kitchens across the country, and has maintained continuous operation in Ithaca for over fifty years. That alone earns it a place in any serious accounting of what American food culture produced in the second half of the twentieth century.
I eat vegetarian food by default when my diet agrees with the menu direction, and Moosewood is one of the restaurants I navigate toward in Ithaca precisely because the kitchen operates with a genuine point of view rather than a concessive one. The dishes here aren't concessions to a dietary category; they're food that was designed to be what it is. The menu rotates to reflect the season, which is how a kitchen with actual sourcing intentions operates.
Five stars for the food, the service, the history, and the ongoing quality. The room is on the small side for the reputation it carries, which means a wait on busy evenings is not unusual. Coming back every time I'm in Ithaca with an evening free. The cookbook collection is also worth having on the shelf if the cooking is something you do.