Waldorf salad vs greens

Waldorf salad

noun
  • A type of salad, consisting of apple, nuts (especially walnuts), celery, and mayonnaise or a mayonnaise-based dressing. 

greens

noun
  • Leafy plants that are used for decoration. 

  • Leaves and leaf-like parts of edible plants when eaten as vegetables or in salads. 

  • The green dress uniform of the United States Marine Corps. 

  • Green vegetables; edible plants or plant parts that contain chlorophyll. 

How often have the words Waldorf salad and greens occurred in a corpus of books? (source: Google Ngram Viewer )