Yes, a few!

Aspects of British History 1815-1914 (Stephen J. Lee) covers basically Peel's whole career, from his ministry with Wellington in the late 1820s to his so called 'Great Ministry' from 1840-46. While it covers alot more things than Peel (radicalism, Gladstone, foreign policy etc.), it gives quite a large focus to Peely, as though he is the protagonist of the 1800s period. Also, the author writes very well and quite clearly, so it's a good read.

Sir Robert Peel: Statesmanship, Power and Party (Eric J. Evans) is basically an analysis of Peel's policies and Peel 'the man'. It's more critical of him than most books actually, so if you're looking for a different viewpoint than he was the best prime-minster of the 19th century (which I would agree with!), then that's your bet.

Robert Peel: A Biography (Lord Douglas Hurd) is, you guessed it, a biography of ol' Bobby. I own it, yet I haven't exactly read it. But as I understand, it's more of a look on Peel's life and his impact on later politics. However, it's got alot of pages and material to work with, so that's perhaps the best choice for pure information on the man.

There's bound to be something in there about his ministry ;)