While the half pass is recommended by many members, personally I like to minmize it as possible, since its not what you call the smoothest way to reverse a card ( especially if your dealing with a single card while your using the whole deck, and I'm talking about the classical version ).
Krenzel's move will fit nicely. Check the chapter on reverses in Card College vol.4 I believe, there is a method where you turn the deck face up normally, and get one card reversed. Check into Expert Card Technique or even Royal Road and study reversals.
There are methods here and there by Harry Lorayne, Vernon and many others. Personally I hate doing the half pass with few cards, when other options can replace it.
Cheers,