Nandos is a restaurant.. so they get food.
The typical answer to this is Niall Horan. He said in 2011 that he loves Nandos. Whether or not this is still true is unknown, but he has said in the past that he loves Nandos so it is likely.
NANDOS!
Nandos and carrots
Nandos have confirmed they will be opening in Leigh (the Greater Manchester one, that is) in June 2012. It will be located next door to Frankie and Benny's at The Loom.
He doesn't eat at a specific one.
$4+
how much pinto beans do I need to cook for 30 people for one meal
Niall admitted that he loves food in general. He loves Nandos and anything chicken related.
as much as you desire
It is mainly Nandos, but they like other places too.
For most of the boys, especially Niall, it's Nandos :P