Free school meals in Wales should be "more cost effective, healthier, and more climate friendly", a leading academic has said.
Prof Kevin Morgan, from Cardiff University's school of geography, also said Wales was a "long way off" being able to source entirely local food in schools.
All primary school children are eligible for free school meals in Wales. Families of older children can also apply for free school meals, with eligibility based on household income.
The Welsh government said it was working closely with councils to offer "the best possible food in schools".