What is beef mandarin?

"Beef mandarin" is not a commonly recognized dish. It's possible that it's a:

* Misspelling: It might be a misspelling of another dish, such as "Beef and Broccoli" or "Beef with Mandarin Oranges."

* Regional dish: It could be a local or regional dish specific to a certain area.

* Personal creation: Perhaps it's a unique dish created by an individual or family.

To help me understand what you're looking for, please provide more context:

* Where did you hear this term? (e.g., a restaurant menu, recipe, cookbook)

* What ingredients do you think are involved?

* Can you describe the dish in any way?

With more information, I might be able to figure out what "beef mandarin" refers to!