Some of the more popular traditional restaurants having a terrace in Vaison-la-Romaine according to TheFork users include:
Auberge Saint Roch, with a 9.4 rating
Auberge La Tuilerie, with a 8.9 rating
L'Esprit Jardin, with a 8.6 rating
In those days what better than a traditional restaurant to retrieve the comfort of eating at home.