There are lots of references to eating and drinking, most of them made by Hamlet.

He is contemptuous of drink: he abhors Claudius' overconsumption of Rhenish; after the play when Guildenstern says that Claudius "Is in his retirement marvellous distempered." Hamlet smaps back, "With drink, sir?"; though when Horatio first appears, Hamlet says "We'll teach you to drink deep ere you depart." Which seems a very cynical and bitter statement, ie What is going on here in Elsinore is bad enough to drive one to drink; but, when Hamlet is sure of Claudius' guilt and ready to act he says "now could I drink hot blood."

Hamlet uses food analogies in bitter tones as well: "Thrift, thrift, Horatio! the funeral baked meats Did coldly furnish forth the marriage tables."; he asks his mother "Could you on this fair mountain leave to feed, And batten on this moor?"; and there is of course, Hamlet's great line that Polonius is "At supper ... Not where he eats, but where he is eaten." yikes!