Cavour is about 27,000 tons. Trieste is roughly 33,000 tons. Trieste has a well deck capable of handling large vehicles via LCAC and/or L-CAT. Cavour has a well deck, but it is much smaller, having only two landing craft for personnel.
Yesterday I was researching Cavour. Wikipedia

stated Cavour could handle sixteen (16) F-35B's with six on the deck, and ten in the hangar. FWIW.
ETA: If I were the Italians, I'd be looking at exporting Cavour's to other nations. It seems to be the smallest size boat that can carry a Lightning squadron. (Maybe someone could build a 15,000 ton boat that could carry 8-12 Lightnings, but unless it was super cheap, why would you buy it if you could get a Cavour-class?)
Take an F-16, stir in A-7, dollop of F-117, gob of F-22, dash of F/A-18, sprinkle with AV-8B, stir well + bake. Whaddya get? F-35.