Translation:The cook cooks outside the restaurant.
I presume this means that the cook cooks food while physically outside of the restaurant building. Can it also mean that the cook cooks food at other places that are not the restaurant? (For example: "Does the cook cook food outside of the restaurant?" "Yes, he cooks at home for his family, too.") That whole thing seems clumsy, so I don't know if it really makes as much sense to others as it does to me.