Who ate cow heel pie?

The phrase "cow heel pie" is not a commonly known dish or a part of any well-known story. Therefore, it's impossible to say who ate it.

It's possible that:

* It's a made-up phrase: You might have misheard something or it's a playful phrase with no real meaning.

* It's a regional dish: "Cow heel pie" could be a traditional dish specific to a certain region or culture that isn't widely known.

* It's a fictional creation: It might be a dish mentioned in a book, movie, or TV show.

Could you provide more context or information about where you encountered this phrase? That would help determine what it means and potentially who ate it.