Guys I need help ?!

So my fiancé works at a comoany cutting trees out of the light lines usually when a storm hits somewhere really bad they go they went to New Jersey to help get the residents they’re light back fast. They went there no problem they went again to Pensacola and they wasn’t able to eat for 2 days no food . What’s some good snacks to pack

Him ? Since it’s a long trip and there’s no light yet ?

Good snacks and healthy filling ones or whatever just need ideas ?