title: How can I find similar documents in MongoDB?
body: <p>I have food db listing similar to:</p>
  
  <pre><code> {
     Name: "burger",
     ingredients: [
       {Item:"bread"},
       {Item:"cheese"},
       {Item:"tomato"}
     ]
   }
  </code></pre>
  
  <p>How can I find documents that have the most similar items in <code>ingredients</code>?</p>