I have this texture problem with a lot of foods. Basically anything that's a creamy, half-liquid consistency. Pudding, stew, yogurt... squash or really soft vegetables. I hate it because some of them taste really good for the first three seconds but then I just can't get it down and it ruins things. And pretty much all spinach is like that. Though I had some amazingly good spinach on one occasion I've never been able to figure out what made it edible.