Sure, but he totally missed the idea of the book. Something tasting salty and not salty is not an instance of self-reference and neither were any of his other examples.
I don't think he missed the idea at all. He's not saying that his food is an example of a strange loop or self-reference. He's saying that the reaction to a dish can be similar to the reaction of coming across a strange loop. He says that "When you hit a strange loop like this, it shifts your point of view: Suddenly you aren’t just thinking about what’s happening inside the picture; you’re thinking about the system it represents and your response to it". That's the idea that he wanted to express in his food. He then provides the example of Spicy Pork Sausage & Rice cakes and other dishes that expressed that idea for him. All those dishes were no longer just about the dish, but about the reaction and response to the dish.
You're right, that would be very cool (but IMHO also a little unlikely). He did right though, by not forcing this deeper connection when it's not really there, instead referencing that "huh?" feeling, which is common to both.