so we are all on the same page, there are plenty of meals to go around. Returns us to the actual point - customer focus 101:
A: Acknowledging you were sleeping
B: Is there anything I can get you?
C: no fuss / no muss
Yes, one could ask. But that defeats the point of customer service and also deflects the accountability to the customer “well you never asked, I just assumed you weren’t hungry”. That’s not cool either.
If you responsible for the FC cabin, know your customers and keep an eye on them.