Peru has several food procurement programs that are meant to keep the baseline of poverty at an acceptable minimum; the one in charge of school meals is called Qali Warma (which translates to 'strong child' from the Quechua language). Qali Warma provides meals to schoolchildren in kindergartens and primary schools throughout Peru, and in the Amazon, all children in public schools receive meals.
This program is based around predetermined menus, which have been formulated by nutritionists; everyone on a national level prepares more or less the same meals. These meals often revolve around a milky drink with cereals in it (such as oatmeal, maca, or quinoa), bread, and crackers/cookies. There aren't many vegetables or fruits incorporated into the program, and much of the food has a very long shelf life; additionally, in some places, the milk is powdered or canned milk, which some students do not enjoy - and you can't blame them, as anyone who has had powdered milk will attest.
I can find flaws in Qali Warma - but I remind myself that the presence of the program is something that can be built upon, and that not having Qali Warma could have truly negative repercussions. However, the government strives to improve its program as well as it can, by working to ensure that the food arrives at the schools safely (without spoiling), and by doing what it can to promote healthy food. For example, there was a directive in 2015 to drastically increase the amount of quinoa in the program, by 85 percent.
For more information on this program, there is a reader-friendly summary of the program and a case study in this report by Health Poverty Action.