Great soup and sandwiches.
Panera is a great spot for reasonably-priced soup, sandwiches, and salad. There is a large variety of each, making my favorite menu choice the "you pick two" option. For the "you pick two" - you get a half portion of two options (either soup, 1/2 sandwich, or 1/2 salad... great, huh?!). My favorite soup is the black bean soup, which is delicious. Love it. It is low-fat and vegetarian and very very tasty. I also usually get the 1/2 sandwich, mediterranean veggie, which is filled with different veggies and a little feta & hummus. As a side, you can pick either potato chips, bread, or an apple. Fantastic, ey?
Panera has free WiFi, which is fantastic. Makes it a great spot to go to for work, projects, studying, etc. This location in Coolidge Corner, specifically, is very large, too, so I've never had a hard time finding a table, which is a great feature.