rounds finish at 8.30, my son eats at 7 with the caregiver. late dinner for him or eat alone

11 yr old. school's back so he's up at 6 and hungry by 7. most nights i get home to a clean plate and a boy half asleep over his homework weekends we eat together and he talks the whole time. weekdays i eat standing in the kitchen. has anyone moved a child's dinner later without wrecking sleep, or kept something small together instead, like a snack at 9