For a different (and simpler) Alsatian experience in Paris, I saw a very good mention about Schmoutz over in the 11th on rue Saint-Maur, quite noted for their Tartes Flambées and Alsatian wines.
A comment: Juste Excellent! Surement la flammekueche meilleur de Paris
Unfortunately for us it is only open in the evening, and we’ve stopped leaving Batignolles for evening meals. We are taking a break from Paris for a couple of days next week and – heading over to Strasbourg, so we’ll have ample opportunities when there.
