Our friends located this walking tour on Trip Advisor and we booked it for the four of us. We met our guide, Kate, and four other couples at a local café in Testaccio and off we went on our food adventure. Kate was extremely well versed in the topic of food from Volpetti to the outside market to our delicious gelato stop we were in food heaven. We certainly would not have had the opportunity to visit this part of Rome, if we had not stumbled upon this website on Trip Advisor. We highly recommend it.