There are three dining options: a 2-course lunch for $15.11, a 3-course lunch for $20.11, and/or a 3-course dinner for $33.11. These prices haven't changed in several years, and we can easily drop $15 on a crap lunch as Cosi, so Restaurant Week is kind of a no-brainer.
For restaurant options, some details from the official release:
Approximately 200 restaurants in Boston, Cambridge, and nearby suburbs participate in Boston’s Restaurant Week. Participating restaurants vary a bit each year, but to whet your appetite, take a look at this list of typical participants:
Downtown Boston / Financial District: Anthem, Bina Osteria, Les Zygomates, Locke-Ober, Marliave, Oceanaire Seafood Room, Radius, Parker's, Union Oyster House
Back Bay: 29 Newbury, Asana, Atlantic Fish Company, Back Bay Social Club, Bistro du Midi, Brasserie Jo, The Capital Grille, Davio's, La Voile, L'Espalier, Mumbai Chopstix, Oak Room
Beacon Hill: Beacon Hill Bistro, Bin 26 Enoteca, Lala Rokh, Mooo, No. 9 Park, Toscano, Pierrot Bistrot Francais
North End: Antico Forno, Artu, Bacco, Bricco, Cantina Italiana, Davide, Mamma Maria, Trattoria di Monica, Tresca, Trattoria Il Panino, Strega, Terramia Ristorante
Theatre District/Chinatown: Avila, Erbaluce, Legal Seafoods, Market, Pigalle
Fenway / Kenmore: Eastern Standard, Elephant Walk, Petit Robert Bistro
Stay up to date for when reservations open by watching the official Restaurant Week site, restaurantweekboston.com.