We are staying here and just wondering about your fav restaurants. Will be there tomorrow!
For Italian, my favorite is Al Caratello. For modern French, it's L'Arcane. For old school French, Sacrée Fleur.
I like Le Moulin de la Galette on Rue Lepic. It has very good food, a historic location, and a friendly wait staff. You would probably need a reservation. Chez Plumeau on Place du Calvaire is a more casual choice but also fun. Relais de la Butte on Rue Ravignan is nice for a coffee or drink, or breakfast. (I didn't think too highly of the dinner I had there some years ago but it's pretty highly rated.) And there are a lot of lovely restaurants on Rue Abbesses when you get off the metro.
Enjoy!