You can get 0 carb protien shake mixes that taste alot better then Atkins. I like EAS premade. You might also try only using 1 scoop of the Atkins shake, that's about the only way I can do it. Just use cold coffee or instant for flavoring. If your not lactose intolerent use cream, if you are then use a low carb soy milk. Unsweetened plain yogurt, basicaly just experiment with throwing things in the blender

After induction you can even throw in some le carb icecream, cold coffee and have a milk shake of sorts.