That's a 3-course meal for $23 dollars at all participating restaurants. Here's the list for Park Slope. Looks like just about everyone is in.

• 12th Street Bar & Grill — Park Slope — American
• 200 Fifth — Park Slope — American
• al di la trattoria — Park Slope — Northern Italian
• Alchemy Restaurant and Tavern — Park Slope — New American
• AltaVoce Restaurant — Park Slope — Italian
• Anthony's — Park Slope — Italian
• AOC Bistro — Park Slope — French
• Apertivo Cafe — Park Slope — Italian
• Applewood — Park Slope — American
• Aunt Suzie's Restaurant — Park Slope — Italian
• Barrio — Park Slope — Mexican
• BarTano — Park Slope — Italian Bistro
• BarToTo — Park Slope — Italian
• Belleville Bistro — Park Slope — French
• Belleville Lounge — Park Slope — French
• Blue Ribbon — Park Slope — Seafood and American
• Blue Ribbon Sushi — Park Slope — Sushi
• Bogota Latin Bistro — Park Slope — PanLatino
• bussaco — Park Slope — American
• Cabana Bar — Park Slope — Latin American
• Canaille Bistro — Park Slope — French
• Cantina Restaurant & Bar — Park Slope — Mexican
• Dizzy's — Park Slope — American
• Elementi — Park Slope — Italian
• Gialetis Cafe — Park Slope — American
• JPan Sushi — Park Slope — Japanese
• KitchenBar — Park Slope — American
• Long Tan — Park Slope — Thai
• Los Pollitos II — Park Slope — Mexican
• Luscious Food — Park Slope — American
• Magnolia Restaurant — Park Slope — American
• Maria's Mexican Bistro — Park Slope — Mexican
• Maria's Mexican Bistro — Park Slope — Mexican
• Melt — Park Slope — New American
• Miriam — Park Slope — Israeli Middle Eastern
• Mulino Ristorante Italiano — Park Slope — Italian
• Palo Santo — Park Slope — Eclectic Latin
• Park Slope Chipshop — Park Slope — British
• Peperoncino — Park Slope — Italian
• Piramide — Park Slope — Mexican
• Playa — Park Slope — Latin American
• Rose Water — Park Slope — American
• Santa Fe Grill — Park Slope — Tex-Mex
• Scottadito — Park Slope — Italian
• Sette Enoteca e Cucina — Park Slope — Italian
• Sotto Voce — Park Slope — Italian
• Stone Park Café — Park Slope — American
• Tempo Restaurant & Wine Bar — Park Slope — Mediterranean
• Toby's Public House — Park Slope — American
• Trattoria Mangia Restaurant — Park Slope — Italian

For a complete list of restaurants in all Brooklyn nabes:  go here.