In the case of Uruguay, the country's National Institute of Meat (INAC) reached an agreement with the Uruguay FA (AUF) earlier this month to supply the meat.
"The national team is being accompanied by the best nourishment," AUF president Ignacio Alonso said. "The AUF is a historic ambassador of our country and will take with it another ambassador, which is Uruguayan meat, the best meat in the world."
Argentina and Uruguay are among the biggest consumers of meat in the world and the asado is considered one the most popular dishes in the countries. The asado is made of different cuts of meats and sausages and cooked on the grill.
Both national teams also made asados in recent World Cups.
"The mate [special tea], the asado [meat] and football go together in Uruguay and are part of our culture," INAC president Conrado Ferber said. "We want to convey the quality of the product, natural and sustainable, and the World Cup is the optimal time to do so."
The Celeste are training this week in the United Arab Emirates ahead of their World Cup opener against South Korea on Nov. 24.
Uruguay's national team already made their first asado in Abu Dhabi's luxurious Park Hyatt Hotel where they are staying. Aldo Cauteruccio, chef of Uruguay's national team, was in charge of the barbecue.
Argentina, meanwhile, arrived in Doha, Qatar, on Thursday and the team celebrated Wednesday's 5-0 win over the United Arab Emirates with an asado. A total of 72 people make up the Argentina delegation.
Argentina coach Lionel Scaloni spoke about the importance of the asado as a way to unite the group.
"My favourite food is the asado, but it's more than that," he said. "It creates an atmosphere of union and collective chemistry.
"It's part of our culture, of the Argentine idiosyncrasy.
"It's during that time that we get to talk, to laugh, relax and connect...It's not necessarily about the meat, although we love it. It's to be part of a group and the connection that it generates."
Fellow South Americans Brazil won't be joining Argentina and Uruguay in bringing meat to Qatar. However, Tite's team have brought some renowned Brazilian coffee and seasonings as well as 66 pounds (30 kilos) of cassava flour to cook the popular Brazilian dish farofa as the Selecao look to bring home the trophy for the first time since 2002.