Here is more detail about the beetroot that Letty queried. The first image shows the cut product, and the final image a totally uncut tray. The two smaller images show the vegetable insitu on a market stall. Now we come to the sign.
'Cuites au four' or 'cuites au fous' depending on the writing. The first I think translates as 'cooked with the furnace' and the second translates as 'cooked with the insane ones'. I guess it depends on whether one likes beetroot.