Under the gaze of Santa Maria della Pace, you'll find the charming and cozy restaurant La Focaccia. As it was just around the corner from my friends' apartment, we ate there several times, and were never disappointed.
If you long to get away from the noise and bustle of Piazza Navona, this is the place for you. Reasonable prices, an incredibly extensive menu, and wonderfully prepared fresh food. The waiters were helpful and speak English, and the menu is translated into English. Sitting outside was delightful, but the interior rooms downstairs were so charming - we didn't even mind when the outdoor tables were filled.
Favorite Dish: Wonderful "suppli" which are rice balls, stuffed with scamorza - a tasty smoked cheese, then deep fried. Potato croquettes. Delicious salads (I love the Ischia). Eggplant rollini with mozzarella cheese and tomatoes. Pizzas. Bruschetta (pronounced "broo SKET tah"). And, of course, focaccia. My favorite was the onion. You can create your own pizza if you wish and they'll cook it in their wood fired oven.