Actually using food porn
Sometimes, when I'm eating something that isn't as amazing as I would like it to be, I look at pictures of better looking versions of it.
For example, if I'm eating a quick, fake sweetener, chocolate mug cake, I'll look at pictures of really delicious, properly prepared, chocolate cakes with icing or ganache.
It actually improves my enjoyment of my food. I do the same thing with pizza that isn't quite up to par.