Unfortunately, learning to cook doesn't make it not tedious and boring if all you want is to get something in your belly and move on to the night's activity.

I know how to cook, but don't often have time to cook. I don't even always have access to a kitchen!

I used to have more time, and might again in the future - and if that happens, I'll go back to spending a few hours preparing dinner. Until then, I'd absolutely love to be able to eat a magic nutrition pill instead of grabbing a badly-made sandwich from the nearest shop. Especially if it's cheaper, too.