I heard good things about this restaurant in Avignon. I was suppose to eat there but cancelled my reservation because I was too tired. Le Goût du Jour
20 Rue Saint-Étienne, 84000 Avignon
I did eat at Restaurant EAT and recommend it. It served great seasonal food at a very good price. The service was excellent. Be sure to make a reservation so you can get a nice table outside. It is a small restaurant that is in a sort of hidden location so be sure to look out for the signs pointing to the restaurant.
I found there to be lots of nice food options in Avignon and just wished I had spent more than one night there. It may look hokey but take the city train tour near the Papal Palace. It gives you a good overview of the city. Also do some of the Rick Steves audioguide tour on his app. I liked the walk along the wall near the old paddlewheels.