have eyes bigger than one's stomach vs ravening

have eyes bigger than one's stomach

verb

  • To take more food on one's plate than one can eat; to be greedy. 

  • To want more than one can handle. 

ravening

noun

  • Eagerness for plunder; rapacity; extortion. 

adj

  • Voracious and greedy. 

How often have the words have eyes bigger than one's stomach and ravening occurred in a corpus of books? (source: Google Ngram Viewer )