Making cauliflower rice from frozen cauliflower florets?

I live in Japan, and no supermarkets near me carry cauliflower rice. I wanted to try making my own and was stunned to find that the supermarkets near me don’t sell fresh cauliflower consistently. I do have a supermarket that carries frozen cauliflower though, and I’m wondering anyone has tried (and succeeded) with frozen? It seems like it will have a lot more moisture to deal with, so I’m hoping there is some way to avoid it turning into mush.