That looks great, I like your idea.Normally, when I make bread, I cut off a 200-300 gram piece after the cold retard and put it back in the fridge for pizza, flatbread or something at a later time.
This time I made pissalicaccio
Cross between a pissalidiere and focaccia.
Bit of olive oil, then spread out the dough. Topped with caramalised onions, anchovies (there are not enough anchovies in the can) and olives.
I put plenty olives and also used the oil from the anchovy can (olive oil).
Not the prettiest, but very very tasty
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My next pizza will make use of discarded sourdough starter -not really discarded, just separated from the rest of the starter to make room for expansion after feeding.