We ate at the Osteria Mercato during a one-day stop in Stresa, choosing it based on the TripAdvisor comments. The staff were uniformly cheerful and helpful, greeting us as if we were old friends. The food was outstanding, and the portions perfectly sized - enough to satisfy, while still leaving room for dessert. We shared an appetizer and each had a main and a dessert, with a glass of house wine. The bill came to about 80 euros, well worth the price. If you want to sit outside, a reservation would be a good idea.