LONG Distance travel with baby!

So we're taking a long distance trip to Dubai and then Pakistan with the baby. He's been already having trips since he was only 2 months within states. But this is going to be first long trip of almost 14 hour flight. He z turning 1 oct 25 while we're leaving oct 20. Any ideas for the food? I usually make his own food but since I won't be able so I think I need to buy bulk of baby foods on the go.