TheFork users who ate in Roquebrune-Cap-Martin have said really good things about La Piscine, Leone and Nonna Maria. Maybe you should give them a try!
Some of the more popular Good for families restaurants where you can go with your pets in Roquebrune-Cap-Martin according to TheFork users include:
Les Incompris, with a 8.4 rating
Il Fornaio, with a 9.7 rating
CAESAR PLAGE, with a 8.1 rating