Yup tahini is awesome, the good ones are sold in middle eastern stores, it's little whiter and taste better than the ones at coles/woolworth .. i use it while making hummus, baba ghanouj, or my...
Yes, the one on the shelve is a tad watery, the one i am talking about looks like this:
http://i.imgur.com/0GEP0l.jpg
http://i.imgur.com/0hKHAl.jpg
http://i.imgur.com/8dIOB.jpg
I don't eat cottage cheese or ricotta by themselves, be creative, i usually cook with it (pasta or quiche) or add pb2/sf maple syrup with some sweeteners ..