Over the last few years, I have been introduced by Braccianese friends to the restaurant Ai due Leoni which is located on the road from Bracciano Due to Castel Giuliano. It is a little hard to find at night being found only by one sign at the restaurant entrance on the left hand side of the somewhat dark road to Castel Giuliano, but the food, service and local Braccianese ambiance is well worth the fairly short drive from the centre of Bracciano.
It is very good value, with the hosts always suggesting specials on the night. It is a family friendly restaurant with lots of families present, together with tables occupied by young local couples or young people. I think it is probably one of the dying class of genuine Italian restaurants close to Rome serving basic but wholesome Lazio regional food eg. bistecca, miale. There is also ample off street parking which is an added bonus, rather than worry about a space in the town centre when wishing to eat.