I visited the Hungry Mother as part of a Business Trip to MIT. It was a little hard to find ( but that might just have been me!)
The restaurant is small so I would recommend that you book so you are not disappointed as people where been turned away.
We started with the Boiled peanuts which i still think about from time to time! They are like a American version of edamame beans with salt, very nice indeed. I then moved on so some pork belly with collared greens and grits which was delicious, I wish grits was on menus in the UK.
If I am ever in Boston again this will be on my "must go " list.