5-10 minutes walk from the Circus Maximus, Palatine Hill, small store front but you could just order then sit at the tables outside under the shade, enjoy the exellent pizza. Sold by weight, two people with drink would only cost you around 10 Euro. The only downside is they don't have a bathroom. But if you are just hungry and want some food in your belly and a place to chill for a bit, this is the right place for you!
The base was beautifully crisp and tasty, no soggy bottom. The guy who owns the place was so lovely and we ended up trying nearly every pizza he had and he was giving us samples for free! They have a special method to make the pizza the way it was and hence the quality was superb for very cheap prices. Definitely recommend giving it a try when you visit Rome.