This delightful sandwich from Nice, in the South of France, started out as a Salade Niçoise in which stale bread was crumbled about an hour before it was served. The name literally means "bathed bread" - alluding to the spreading of olive oil on the bread and the softening of the inside of the bread after the filling has been added. It can be made with varying ingredients and various amounts but the basics are listed below, feel free to adapt it to your own preferences. I make these the night before we plan to go on a picnic; I then wrap a piece of greaseproof/brown paper around each roll or baguette sandwich, and tie them with kitchen string - it keeps them all together and looks very "French Rustic"! (It also helps to hold the sandwich together whilst eating them!) A French classic which is essential on the picnic menu.