Where to eat near Harvard MASS?
The Gibbet Hill Grill in Groton would be a good option - I've eaten there - its a large space with friendly upscale but not fancy ambience, a popular place - emphasizes steaks and local products.
You could do worse than the historic Colonial Inn in Concord - I was quite impressed with their Sunday brunch and found their lunch quite acceptable, although I've never been for dinner.
A third option, which I have never tried but which looks interesting, is the restaurant at the nearby Nashoba Valley Winery. They seem the most ambitious (and expensive) of these three, although the Gibbet Hill Grill is not far behind.
48 Monument Sq # 2, Concord, MA
Gibbet Hill Grill: Restaurant
61 Lowell Rd, Groton, MA 01450
Look at the posts on this forum for the same question for Acton and Concord. If you could narrow the cuisine / Price range/atmosphere down a bit i could help.
Gibbett Hill in Groton is one suggestion.
I have not been there but it gets decent reviews here. Im more into ethnic/asian places so if that interests you i can give a list.