One of the best things about coming to Testaccio, is that you'll very rarely run into any tourist trap restaurants. That means, you won't find any pictures of food on menus posted outside the restaurant nor will you have waiters harassing you with their 'Prego, special price, special price' banter. Indeed, tourists ambitious enough to explore this not so touristy part of town will be pleasantly pleased with the selection of really Roman food.
For starters, there's Remo. Okay, you might think you've tried great pizza in the past. But nothing tops a pizza pie at Remo. As opposed to most pizzas you're probably had in your life, Remo's pizza is paper thin. Which makes eating a whole pit, not hard at all. Menus don't really exist here which, we guess makes the whole experience all the more fun. Try and think of your 'dream' pizza and go and ahead and blurt out the ingredients. They've got them all here: salame, artichokes, mozzarella di bufala, prosciutto, etc. Most people keep it simple though. The margherita (cheese) pizza here is epic.
When it comes to osterie, some of the best in town can be found in Testaccio! For real roman dishes like pasta carbornara (made with egg and pancetta), amatriciana (made with tomato, onion and pancetta) or some good ol' simple cacio e pepe (made with lots of pecorino cheese and black pepper), two hot spots are Checchino dal 1887 and Osteria degli Amici.