pot pie vs stroganoff

pot pie

noun
  • A very small pie, the crust of which is made entirely of flaky pastry and baked in its own pie tin, usually for one person. 

stroganoff

noun
  • A dish of sautéed pieces of beef (or a substitute) served in a sauce with sour cream. 

How often have the words pot pie and stroganoff occurred in a corpus of books? (source: Google Ngram Viewer )