A family owned restaurant, called Alfredo, located at Viale Don Giovanni Minzoni 3/r, which is near Piazza de la Liberte, is a a bit off centre of the main tourist areas and the crowd is mainly local.  This restuarant gets moderate reviews on Trip Advisor and is generally ranked in the middle of those listed on Trip Advisor. 

For more information on Alfredo's, you can visit Alfredo's website.