I enjoyed my dinner at this atmospheric brasserie-styled restaurant . The Bagatelle is conveniently situated between train station and the 16th November plaza. It features a beautiful terrace with lots of green and a very pleasant interior, decorated with framed black and white photos.
When checking the menu I was a bit disappointed at first - I had expected Moroccan food, the Bagatelle serves basically French food with a nod to the local cuisine. The food turned out rather well though. My friend ordered a tajine of lamb and dried plumbs and enjoyed it. I had liver - very tender but it could have stayed in the pan for an additional 30 seconds. This, a large bottle of water, a bottle of wine and the bread and lentils ran us roughly 40 Eur. Remember: Marrakesh is not cheap!
The service was excellent. Patrons were mostly French (some expats), some guests looked Moroccan. The restaurant does not have an overly touristic ambiance and that's good.
I would recommend the Bagatelle to people looking for a romantic French restaurant with an upscale feel.
If it's typical Moroccan cuisine that you're after, look elsewhere.