Try Est Est Est on Via Magenta just of Via Nazionale. Super Pizza and Pasta. There is usually a queue. It only opens from 7 in the evenings.
There is another nice spot on Via Magenta, can't remember the name, its a good spot if the queue for Est Est Est is too big.
Around Termini, there is a street called Via Marsala. Plenty of resturants there to grab some lunch during the day.
There is a Spar in Termini Station that opens onto Via Marsala. Handy if you need anything. Also, If your flying Ryanair, the Terivision Bus stops close to it. They have a good service from the airport every 30 mins. €4 e/w
On the Tourist stuff, beat the Queue at the Colosseum buy buying your ticket for the Roman Forum. There is never a queue over there and usually an hour queue for the Colosseum. The ticket does both.
The queue for the Vatican is usually mental. Book your tickets online (see link below) at the official Vatican website. No queue for people with reservations. They cost €15 on the door after a 90 min queue or €15+ €4 booking online. Its worth it. If you fancy a Tour, there are loads of guides on the street that offer a Tour for €45. The advantage is the tour guide can get you access from the Sistine Chapel to St Peters. The queue for St Peters can be an hour to 90 mins to.
If you are based in Termini, get a map in the hotel and jump on the underground €1 per train trip or unlimited day for €4. You can get the underground to the Vatican & Spanish steps, Colosseum. Most of the other Tourist spots are within walking distance of underground stations.
Rome is a good spot, that throwing a coin the the Trevi Fountain is costing me a fortune on return trips!
put http in front of the link below, newbies cant post urls here
://biglietteriamusei.vatican.va/musei/tickets/do?weblang=en&do"]