Asteur operates at a scale rarely seen off the island, anchoring fine dining in a restored 19th-century stone house on Chemin de la Grande-Côte. Led by chef Olivier Robillard alongside Mihiko Roy, the restaurant builds its identity around a fixed tasting menu that unfolds without advance notice, allowing ingredients and producers to lead the narrative. The cooking is precise but playful, rooted in Québec terroir and shaped by seasonality, foraging, and whole-ingredient use. Dishes move fluidly between land and sea, balancing technical confidence with restraint. Upstairs, a more relaxed salon translates the same philosophy into a shorter format, often repurposing elements from the main menu with ingenuity. Throughout, sustainability isn’t framed as a talking point but as standard practice.