We asked the taxi driver to take us from Aghir to Midoun (6km), to a restaurant. On the way through the town of Midoun he pointed out a "chic" place, as he put it, then he dropped us at this "normal" one. The menu was limited, and even some of menu was not available, but there was a Tunisian family, smartly dressed, looking very "at home" which I thought was a good sign. Luckily it was, the food that we choose was plentiful and excellent, and the toilet was recommended by my wife.
At 10.5TD for two we thought it was pretty good value. That's £2.30 p/p for a very filling pasta dish, with bread, olives, harrisa and a litre bottle of water.
Les Delices D'Ulysee is a nice cafe/restaurant in Midoun. After a walk around the town we returned here for a coffee and mint tea. It was different to most Tunisian cafes in that there were as many women here as men. The waiters were very friendly and it was very good value. We sat out on the terrace facing the street though the inside, when we saw it later, looked very cool, full of locals smoking their chicha pipes. Had we had more time I would love to have stayed and join them.