Even though the Provence is not exactly the province you should go to for crêpes and galettes, La Cachette is a rather safe bet. We always sit inside because it's cool and roomy, while outside the street is hot and narrow, and the tables are too cramped together to really enjoy your meal in peace.
When my wife and I had dinner there last week, she had fried salmon with gambas and ratatouille, while I enjoyed the galette speciale (that is the fancy one with scallops, gambas and crême fraiche). With that we had a bottle of Bergère des Viogniers from the nearby Domaine des Rosier. Neither food nor wine left much to be desired, and the same can be said about the fast and attentive waitress, who, by the way, also speaks very good English.
A few days later we came again, this time for lunch with our two-year old grandson, and we were equally happy, this time with the éventail de gambas (wife), the pavé de cabillaud (myself), a plate of frites and legumes (the little one), and no wine (it being lunchtime). Again the service was fast and friendly, even though there was enough action at the other tables too.