Time to head to LAX ... but not to catch a flight. We're paying a visit to LSG Sky Chefs, one of the largest companies that provides catering to airlines. It's a huge operation that runs 24/7 and cooks up 15,000 meals each day. How is all that food prepared? How fresh is it? What are they eating up there in First Class? We'll take a look at how menus have changed over time and do a full tour from the kitchen right out to the tarmac.