There are several all inclusive restaurants which are generally good and represent excellent value.

Le Grand Bistro is one chain that offers entrée, plat, dessert, wine, and café for 44€.

Montparnasse 1900 offers a glass of champagne to its menu of wine, entrée, plat, salade, fromage, and dessert for only 35€.

Another possibility is au Moulin Vert in the 14th. They offer un apéritif, entrée, plat, fromage, dessert and a bottle of wine and mineral water for 44€.

For information about recommended restaurants in general, consider these blogs:

http://parisbymouth.com/
http://lefooding.fr/
http://www.davidlebovitz.com/