it shouldn't be impossible to go 5 hours without food if you eat before work. skip early breakfast and eat at 10-11. then have an egg or something after work and go home and make dinner.
if you "don't feel like doing that"...
tins of fish, yes, or plan left-overs from the evening meal.
the other option is to be more organized in the morning.
all those kids are little germ factories and you're eating with your hands and touching them and interacting, yes? sorry. gross. they're not your kids.
As I ate the oysters with their strong taste of the sea and their faint metallic taste that the cold white wine washed away, leaving only the sea taste and the succulent texture, and as I drank their cold liquid from each shell and washed it down with the crisp taste of the wine, I lost the empty feeling and began to be happy and to make plans.
– Ernest Hemingway