I'm doing 14 days of the same, except my shakes aren't protein shakes, but low-calorie HMR shakes. My surgeon also lets us have a bit of fresh fruit as well as some dill pickles. (The pickles are to break up the monotony of the sweetness.)
It's all really not as horrible as I expected. I'm on day 3 and I'm finding out that variety is the key. If I make my shake a different way each time, I enjoy them a lot more. For example, last night I tossed in a handful of frozen peaches and a couple of teaspoons of ff/sf cheesecake pudding into my vanilla shake, and it was so tasty! This morning I added frozen strawberries, ff/sf chocolate pudding and a few drops of "Chocolate Fudge Brownie" Capella
Flavor Drops. (I bought 6 of these to flavor my coffee, but they have turned out to be AMAZING in my shakes.)
I don't know about you, but I definitely prefer the chicken broth over the beef. Have you found out any way to make it more palatable?