Bread and any sort of companion - anything from olives and tomatoes carried to work, cheese and onions or even a cooked sauce or dish of some kind.
"Broken bread." A classic dish from Sardinia made with carta di musica or pane carasau bread, briefly soaked in water to soften it, layered with fried egg, tomato sauce and hard cheese of some sort, such as Pecorino Sardo, maybe meat, and baked.
"Bread in a box." Similar to what the British call a "tinned loaf", bread which is square in shaped and designed primarily for ease in making sandwiches.