I have finished my palindromic sonnet! In the end the subject matter shifted away from beef to a dystopian view of meat production processes and the poet’s own desire to return to a golden age of burger cultivation. The Portsmouth News – the local newspaper – is doing a feature on me and my palindromes, and will hopefully be printing the sonnet!
I have not yet gotten around to writing the promised haiku about lettuce.
Evilly Dine Dragons 
Maybe tofu would work better than lettuce. Or some kind of bean. Really looking forward to the final version of beef.