Hi Beachrunner,
I'm surprised your center hasn't offered it to you. Just ask them for a copy of the Meta-Quick menu - it's not a separate program so there's no charge. The shakes are quite expensive so I imagine they get a nice commission off of them. They often suggest it when you've hit a plateau or want a boost. (But then they'll usually tell you that you won't see any weight loss until the week is over.)
Anyway, the Meta-Quick menu requires 4 HNS's a day, and you drink the Very High Protein shakes + an HNS for breakfast and lunch. Or for one meal you can have a meal replacement bar instead of a shake. You can combine the shakes and HNS into one if you want - vanilla shakes with orange or mixed berry HNS's are quite good. You eat a regular on-plan dinner, using the other two HNS's as snacks between meals.
You can use the Meta-Quick menu for up to seven days each month, and you don't have to do the days consecutively. I like to do it for a whole week. I enjoy the break from cooking/weighing/measuring for those two meals a day. I call it my week of chocolate.

I put the shakes in my VitaMix blender with the required water and a few big handfuls of ice and it blends into a very large, thick, frosty shake. It increases in volume from two cups to six. Love!