The Collaborative International Dictionary of English v.0.48:

Eating \Eat"ing\, n.
   1. The act of tasking food; the act of consuming or
      corroding.
      [1913 Webster]

   2. Something fit to be eaten; food; as, a peach is good
      eating. [Colloq.]
      [1913 Webster]

   Eating house, a house where cooked provisions are sold, to
      be eaten on the premises.
      [1913 Webster]

WordNet (r) 3.0 (2006):

eating house
    n 1: a building where people go to eat [syn: restaurant,
         eating house, eating place, eatery]