I understand the fear of trying new things. You cannot dump on meats though. They might not agree with you but you can only dump on sugar, and even then, not everyone does.
I am not a huge yogurt fan either, but after having it for so long after surgery (i eat about one a day, doctored up of course), i don't mind them now. Just took a bit of getting used to. I still don't like regular yogurt, but don't mind the greek.
if you don't mind doing shakes of any kind, you could try putting in a fraction of the protein powder. I do green smoothies every morning and put in 1/4 scoop of protein powder. it's not a lot of extra, but every little bit helps.
i also use the syntrax matrix cookies and cream. it's a bit higher in calories and isn't pure isolate, but i enjoy it.