Zambrero is an Australian restaurant chain serving Mexican food. It was founded in 2005 in Canberra by then-medical student Sam Prince with the idea of using the profits to support humanitarian causes. The chain donates a meal to someone in need in the developing world for every meal purchased through their Plate4Plate program. A 2016 study by the George Institute for Global Health, analysing 229 small meals and snacks from 25 fast food chains, found Zambreros pork nachos to have the highest kilojoule count.