if you can find good pizza sauce anywhere, why do you need the ingredients?
just kidding.
i'd use a couple of chopped fresh roma tomatoes, added to a pot of cooked down san marzano tomatoes (imported italian - unless you're from italy, of course) and a little tomato paste to thicken and deepen the flavor. add a little salt and black pepper, and if it's too tart, some sugar.
as far as herbs go, add equal parts oregano and savory.