I would recommend some Sherman Alexie. The Absolutely True Diary of a Part Time Indian is approved in many school districts now, but it certainly doesn't fit the literary canon that many literature levels require before graduation.
This piece deals with violence, friendship, alienation, sports, girls, being the outcast, and race (particularly Native Americans vs. whites). It is set in modern day society and deals with very relevant issues to teenagers.
I have used this book in night school with students who have failed several levels of high school English and it is always an engaging piece especially for boys. The reading level feels like it is about 6th or 7th grade. LEP would certainly find this a book they are able to complete.