Usually eat out, buy a takeaway or heat convenience food.
It is a convenience food, generally intended to be eaten for breakfast, but is often a snack.
Very few companies offer this convenience food service.
The fast food and convenience food trends have also changed the way restaurant kitchens operate.
If only water is necessary, then powdered milk is an ingredient of the convenience food.
They differ in that restaurant food is ready to eat, whilst convenience food usually requires rudimentary preparation.
Cornmeal that was ground and dried, referred to as "pinolli", was used by travelers as a convenience food in this manner.
Most of them were made in the days before microwave ovens, cook-chill and convenience food.