Favorite family restaurants??
La Taverna dei Fori Imperiali. Reserve for dinner. http://www.latavernadeiforiimperiali.com/
Samsn beat me to it. I loved,loved this restaurant. No reservations needed for lunch but definitely for dinner. We tried to see if they'll seat us for dinner but got turned down at the door. I still remember the spaghetti carbonara with the crispy bacon, yum! It's close to the Forum.