Westport is a small town of about 20,000 that has its own glossy monthly magazine (it was Martha Stewart land), at http://www.westportmagazine.com.
There is a cumulative section of restaurant profiles in each issue which is only in the print edition, usually available at Barnes and Noble on Route 1 in Westport. You can sip a latte and flip through it there.
Personally, I like V (vee, not five), also on Rte. 1, for a special lunch or dinner, since I do not have a Westport budget. Either the Athenian or Southport Diners are reliable for basic food. Bombay Indian Restaurant has been highly recommended to me by my friends from India. There are many others, but be prepared to pay for the location as well as the food. This is the Connecticut Gold Coast, after all.
For the full Martha, visit Hay Day on Rte. 1. It is a very upscale food boutique, close to Martha's former house on South Turkey Hill Road. The selection of goodies is jaw-dropping.