family meal根本不是"家庭聚餐"，其实是餐厅的"员工餐"。

【例句】
They're having their family meal, so we can't get food in that restaurant.
因为大家在吃员工餐,所以我们没法儿去那家餐厅吃饭。

This chef is cooking the family-meal for a staff of twenty.
主厨正在为20名员工煮员工餐。