Get a dehydrator and make tomato powder.
https://thesurvivalmom.com/10-uses-tomato-powder/
https://dontwastethecrumbs.com/2017/09/tomato-powder/
I leave the seeds in mine for the dehydrator part and sift them out once I’ve ground the dried maters up.
It’s REALLY good sprinkled on the top of a roast in the crockpot. Makes its own tomato gravy.