American Food for American Schools Act of 201 9 This bill requires school food authorities (SFAs) to request a waiver from the Department of Agriculture (USDA) to purchase foreign commodities or products for the National School Lunch Program (NSLP). SFAs may purchase foreign commodities or products without a waiver if the commodities or products are not produced or available domestically. (Under current law, Buy American provisions require SFAs to purchase, to the maximum extent practicable, domestic commodities or products for the NSLP. There are limited exceptions which permit the purchase of foreign products in circumstances when using domestic products is truly not practicable. If an SFA uses an exception, there is no requirement to request a waiver to purchase a foreign product or commodity, but the SFA must keep documentation justifying the exception.) USDA may not provide a waiver for an SFA to purchase foreign commodities or products unless (1) the commodities or products are not produced domestically in sufficient amounts or of satisfactory quality, (2) the domestic commodities or products would be significantly higher in price than foreign commodities or products, and (3) the SFA agrees to make the waiver publicly available on its website and email a notification of the waiver to parents or guardians of students who will be served the foreign commodity or product purchased pursuant to the waiver.