The best shake that I have found is Shakeology! All Natural, Vegan and Gluten free! strawberry has 16 g Protein in each serving and only 21g carbs!
I've had lap-band for many years and this is the best I have found due to the Vitamin and mineral content. As part of long term side effects of lap-band you really can get depleted in these which can make you feel really bad. Make sure you are meeting your daily requirements!!!!!
Look into Shakeology at www.beachbodycoach.com/danadjoplin
Good luck to you!