Graham King:
French crepes (thin pancakes). I had a buckwheat (sarasin) one for main, with Reblochon, lardons, cream, onions and potatoes to start. For desert a sweet one slathered with Nutella. All of it washed down with copious dry cider (4.5% alcohol) served in little earthenware bowls. Delicious, and all very cheap.
The whole restaurant is run by a couple, the man in the kitchen and the woman somehow serving 10+ tables at once always with a smile.
It's on a pedestrian street on the edge of a pedestrian square, so great for kids, as they can run around outside without being in danger.