While in this charming town, in the Languedoc-Roussillon region of France, I ate at a local neighborhood café for lunch and at a more upscale restaurant for dinner: good food and excellent service at both (just in case you venture this way, but bring your GPS!) See why HERE
1. Le Café Bleu (lunch):
Menu
Gambas flambees a l’Armagnac
Salade au poulet et roquefort
2. La Patio Catalan (dinner):
Interior
Lobster soup
Salade frisee
Salad and sardines
Fruit crumble and ice cream
24/7 in FRANCE 
In Cagnes sur Mer last September had lunch at the excellent Café Socca, near the market, where the lasagne aux fruits de mer was sensational, very busy, very buzzy, chatted to two very elegant older ladies, French but long time USA residents back for a visit. It was great and so were the two lovely young girls who waited on table.
Thanks for letting me know – Cagnes sur Mer is lovely but a lesser known tourist destination in the area.
It all looks good, I’ll have an extra order of of the gambas!
The gambas had to be sent back to be cooked a little more, but in the end were delicious!