I go from Boston to Worcester and back almost every day, and Rte 9 is one of my favorite ways to go. It can be slow, but it has some of the charm of "old" sprawl, and although they are getting fewer, some remnants too of its past as a rural route.
Favorite stops for a meal on the way there or back for me are:
Sichuan Gourmet (Framingham): This has been praised by other folks on the board too. It is a floor up from a bathroom fixtures shop, and it serves up good spice in a friendly atmosphere.
BBQ Tennessee's (Framingham): I've yet to find really fantastic barbecue anywhere in New England, but this place does some things very well, especially chicken and pulled pork.
Wasabi (Framingham): Perfectly good sushi, but I am especially taken with the mushroom appetizer.
Chef Sun (Westborough): It's tucked away in a strip mall, and has Thai and Chinese menus. The Thai menu is outstanding.
Any other fans of Rte 9 out there, with favorite stops? Places to pick something up for carryout on the way home?