While "beefeater" is a word, it's not a common substitute for "beef" in this context. It's more likely you're looking for a word that sounds the same but has a different meaning. This is a bit of a trick question, as there isn't a single word that sounds the same as the whole phrase.
If you're looking for homophones for individual words in the phrase, here are a few:
* Beef: None
* Pork: Poーク (Japanese for "pork")
* Ribs: Ribs (no homophone)
* Poultry: Poultry (no homophone)