AF1 Has Two Kitchens
Most commercial airplanes only have a tiny kitchen with a box of peanuts, coffee pots, and refrigerated beverages. But Air Force One has two full-sized, fully staffed kitchens so healthy, fresh meals can be served.
In fact, the kitchens can handle feeding one hundred people, even though the plane can only carry 96 people. So a only few people can have seconds.