The food wasn't too shabby either
Before our trip, I emailed an Art History professor who has been traveling back and forth to Italy for 20+ years. I asked him for dining recommendations that I will gladly share if you are planning an upcoming trip. Read below.
The sights are endless, as you know. There is a saying among the Romans, even a lifetime is not enough (to see everything). Since you have the Vatican covered (the Museums, then Saint Peter's) you'll need some antiquities to balance things out. the Pantheon, Colosseum, and if you have time, the Roman Forum and Palatine hill. (Bring a hat since the sun can be very strong.) Both the Piazza Navona and nearby the Piazza of the Pantheon are good places to sit and get some refreshment. If you are interested in Baroque churches and decoration, there is a very nice one in Piazza Navona (Sant'Agnese) and both Sant'Ignazio (near the Pantheon) and the Gesù (see below) are not to be missed for their illusionistic painted ceilings. Bernini's Ecstasy of Saint Teresa is a bit out of the way in the church of Santa Maria della Vittoria (not far from the train station). Then there's shopping. Make a point of going to the Spanish Steps and roam around the nearby streets, including the Via Condotti (shopping heaven).
Here are some restaurants you will find interesting. I have also noted their general locations in terms of nearby monuments. I hope this helps.
This is in the historic Jewish Ghetto in the same piazza as the Baroque church of Santa Maria in Campitelli (very nice). You can sit outside under umbrellas and the food is very good, pricey though depending on what you order.
Via Borgognona, 11
I think they are closed on Sunday; very good Tuscan food; only indoors
Near the Spanish Steps and the Via Condotti where you will find Prada, Bulgari, etc.
Piazza Caprettari, 63
Near the Pantehon; sit outdoors
I don't know which day they are closed, if any
Piazza dei Ricci
For lunch you might want to explore the joys of Neapolitan pizza at
Largo di Torre Argentina, 1 located in an area with lots of ancient ruins, not far from the Pantehon. (The main street that passes the Largo Argentina leads in one direction to the Vatican and in the other to Piazza Venezia. The big church you see in that direction from Largo Argentina is the Gesù. At Piazza Venezia you see the monument to united Italy, dedicated to the first king, Victor Emmanuel (called by the Romans the Wedding Cake) and behind it the historical Capitoline hill on Michelangelo's design and with two museums full of antiquities. From Piazza Venezia the Via del Corso branches out in one direction (north) and in the other the broad road leading to the Colosseum, skirting the Wedding Cake to the left.
Another lunch place which is very cute and inexpensive (12 Euro fixed price for lunch, but for dinner the prices are normal). I think they are closed on Sunday.
La TavernettaVia degli Spagnoli, 48
This place is tucked away on a quiet street not far from the Pantheon. With your back to the Pantheon walk into the next piazza with the Church of the Maddalena (very elaborate late Baroque facade and decoration on the inside); continue past the piazza and turn left on the Via delle Coppelle, then second right. You will pass two restaurants as you enter another piazza (they are popular and you may want to stop there), but the Via degli Spagnoli is straight ahead.
From his list of recommendations, we ate lunch at Rosso Pomodoro. At the end of our trip we decided it was our favorite pizza and caprese salad (I ordered this salad about 12 times during our 13 day trip because mozzarella actually has flavor in Italia. If you're curious, I gained 4 pounds on this trip)
I hope this post is helpful. If you have Rome recommendations, share below. Who knows when we'll be going back!