In London: Brown's - a great place to get a steak, also they have great deals on pre and post theatre menus.
Sticky Fingers -a great place to also get a steak and if they have it, you must try to maple duck! Owned by Bill Wyman of the Rolling Stones, this place has attitude and class.
In and around NoHo: Fitz Willy's - totally crowded when parents and families are around the campus but it's a pretty decent place.
Sylvester's - always a long wait but it's the best place for brunch
The Depot - the place my parents would take me for brunch every time we drove to Smith. Great food.
Buenos (Amherst) - best mexican ever. Great tacos!
Restaurants in General Applebees Tea Rooms London: Fortnum and Mason - great tea room upstairs and exquisite food and teas for sale on the ground floor
Massachusetts: The Teapot (Stowe) - my favorite of them all; Elizabeth Ann's (Tyngsboro).