Agree with Orion C. add tomato paste - I buy the #10 cans from Costco and use a few cups of paste to thicken sauce. This is for a large batch when I can spaghetti sauce.
I usually make from tomatoes from the garden but it would work with store bought. What you do not use on the paste - divide up and freeze. That way next time around you have the paste ready to go. A little goes a long way.
Add your spices as you see fit. I never follow a recipe just add some of this and some of that until it taste right.
The #10 cans of tomato paste are a much better deal then the sauce and not much more expensive. So overall it is a dollar stretcher.
Ephesians 6:12-13
We aren’t fighting against human enemies but against rulers, authorities, forces of cosmic darkness, and spiritual powers of evil in the heavens. Therefore pick up the full armor of God so that you can stand your ground on the evil day