I was having the exact same problem. Everything I tried tasted so nasty. I actually threw up in my mouth trying to force down the oastmeal and the mushroom soup didn't even make it to swallow.
What I eat now is very repetative but I can swallow it. I use the fruit drink packets (orange pineapple, cranberry, mango) and add 24 oz instead of the usual 8 oz. The extra water dilutes the protien taste and also helps me get all my water quota. I do like the chicken soup too. Again. Use at least and full cup of water. My coach uses some Proti product, not sure if your does but you can buy online. The chocolate, mocha, and vanilla wafer bars are amazing! I eat 1 a days as my night time snack. It is a restricted item.
What NOT to eat.
Anything that they are trying to make "creamy". YUCK!!!
Lemonade - will not mix up very well and always has chunks up the protien
pudding and soy puffs (I've only tried the choc and bbq) very strong after taste.
Hope this list helps. Try to find at least 3 things you can eat and stick to it. It's so worth it. I've lost 18+lbs in 5 Weeks!!
Good Luck