One of the objectives of the newly adopted European Child Guarantee is to ensure effective and free access to at least one healthy meal each school day for all children at risk of poverty and social exclusion in Europe. However, little is known about the starting point of Member States in terms of school meal provision. This paper aims to fill this information gap. It maps the current free school meal provision in the 27 Member States, reviews existing relevant evidence to illustrate the expected impact and presents estimates of the public budget needed to meet the Child Guarantee's objective.