Nope. Especially given the extent to which "cow" is a thing that we created because we wanted more/better beef. Over centuries, we have become increasingly ef

Nope. Especially given the extent to which "cow" is a thing that we created because we wanted more/better beef. Over centuries, we have become increasingly efficient at producing beef, and are extremely efficient at it. It is probably not possible to be much more efficient using whole-plant crops and growing whole-animal beef.