Pio Pio [1746 First Ave. (bet 90th and 91st Sts.) 212-426-5800]
One of the best deals on the Upper East Side, this Peruvian chicken joint will fill you up with good food on the cheap. The centerpiece of the experience has to be a full chicken. This will comfortably feed three people, and maybe even four if you load up on sides. The chicken is tender and flavorful, offering both white and dark meat. As for side dishes, my favorites were the Maduros (sweet plantains), the Avocado Salad, and the standard rice and beans. All of these are perfect for sharing, although you may need two orders of rice and beans if you have four people. Make sure to show up early if you can, because this small restaurant fills up quickly.