But why does that information show up in the first place?

It's confusing to the person.

So sorry, I just discovered some issues when printing the recipe https://www.calculatedtraveller.com/blog/guacamole-san-antonio-texas/

None of these things show up on the post but only on the print view. I tested it in Firefox and in Chrome.
(see screen shot attached shows website on the right/print view on the left)

1. It is inserting my name "Mary" before the meta description
2. After the meta description it displays the post category/keyword/cuisine but with no label - just the words - so it looks odd.  I'd like to remove this
3. It shows Nutrition facts, calories, fat. I have these set to hide them. 
4. The calories and fat are made up numbers - I didn't fill them so I don't know where they are coming from
5. The photo is distorted and doesn't show as landscape
6. It shows a "print this" link which isn't required because I'm already printing it.

thanks

Sorry I wanted to add a reason why I need this

What if in the case of a Mexican dish and I have the 1 recipe but I also want to include a separate recipe for Salsa.

I would like to then have 2 recipes in the 1 article.

Is this possible?

Is it possible to have more than 1 recipe in the same post using the recipe plugin and the recipe shortcode?