Here are some restaurants within walking distance (1.5 km) of the conference site.
O Chalet (Savoyard cuisine; approx 34€ per person. 55 bis, Chemin de Halage 95610 Éragny)
Aux Petits Oignons (French cuisine; approx 59€ per person. 47 rue des Pinsons 95610 Éragny)
Indien Palace (Indian cuisine; approx 26€ per person. 273 Avenue Carnot 78700 Conflans-Sainte-Honorine)
La Cavallina (Italian cuisine; approx 37€ per person. 1 Rue Pierre Scheringa 95000 Cergy)
Le Chameau (Moroccan, vegetarian options, approx 25€ per person. 14 rue du Pont, 95000 Neuville-sur-Oise)
Cala Luna (Italian, approx 25€ per person. 291 avenue Roger Guichard, 95610 Éragny-sur-Oise)
Brasco (French, approx 25€ per person. 15 Rue Traversière, 95000 Cergy)
Here are some other very nice restaurants, but they are somewhat further away (4 or 5 km from the MIR):
Au fil des saisons (French, approx 26€ per person, 17 Allée des Acacias, 95000 Cergy)
La Pugliese (Italian, approx 28€ per person, 65 Rue Pierre Butin, 95300 Pontoise)
Rojana (Thai, approx 28€ per person, 27bis Rue Aristide Briand, 95520 Osny)
Dans les étoiles (French, approx 38€ per person, 63 Rue Francis Combe, 95000 Cergy)