Tena Valley suckling lamb Food and drink · Panticosa, Alto Gállego, Huesca Image of Panticosa, not of the place itself. Milk-fed lamb raised by the flocks that go up to the high pastures of the Tena valley, slaughtered very young and of pale, tender meat; it is roasted whole or stewed in caldereta during the festivities and fairs of the valley. Photo: Antonio Lana Dïaz de Espada (CC BY 2.0) What to see and do in Panticosa