The other night, I was listening to 1060 KYW news radio when I swear I heard a reporter describe MacDonalds as being ranked in some respect "among fast feeders" rather than "among members of the fast food industry" or some other such characterization.

Even if I heard it incorrectly, it was brilliant. You would go to such a place for a "feeding" rather than to eat. It provides you with "feed", not "food". It even creates a useful counter-point on the scale of food opposite "slow food".  Points on such a scale might be:

fast feed - MacDonalds (especially during winter 1980 when I was a cook)
feed - Kraft dinner and turkey wieners (I ate this in the last seven days)
food porn - food created in the image of something on a food television network
fast food - Subway or Cambodian diners at lunch
food - friends, family and real ingredients
slow food - grow it or by it from the grower.