I buy the thinnish cut ones, boneless. They're not the super skinny ones, but they're not 3/4 thick either. So whatever that in-between size is.
I dunk them in a little egg-milk-pepper mix, dip them in Italian breadcrumbs, spray some EVOO over the tops, then bake for 10 mins at 425, flip and bake 10 more mins. Perfect and tender.