Healthy and affordable trucker food?

well by experience I can't tell you that alot of that food expires real quick if you only have a thermal electric cooler. But if he has a real refrigerator with freezing capacity then you can cook healthy and freeze it in cooking bags.then he can warm it up in microwave. At truck stops. A thermoelectric cooler costs about 100 dollars but a truck refrigerator cost about 350 dollars. my best advice is to eat subway sandwich 5 dollar footlongs aint that's unhealthy