In theory you're not wrong, of course, but in practice "just eat salad instead of a pizza" is so simplified it's not even useful. And I can't even comprehend what's the "damn good compromise" you referred to.

You can eliminate the daily cravings with this change of habits, but you can't change the caveman psychological reaction to eating a pizza. It will always taste much better and yield way more dopamine than a green salad ever will. Much like an ex-smoker and cigarettes.