I'd ditch the salt completely if you're adding Parmesan or Pecorino. Recipe is not specific, because you don't have to have exactly 2 cups of bread. Use up whatever you have on hand. The amounts of everything else will obviously change if the quantity of bread changes. The key here is to start with stale bread. Also, don't over do it. It's easy to use too much cheese, oil, salt or seasoning. You can always add more, but you can't take it out. The oil is really used for color and flavor, but also to re-moisturize the stale bread. You be the judge of how much more or little you need.