I got asked about cauliflower crust and was reminded that I “riced” a number of cauliflower heads and made a bunch of things out of them.
You’re going to need a food processor, and you can prepare this ahead of time and then freeze the “riced” cauliflower. Unless you are getting very small cauliflower, this turns into quite a lot. If cauliflower is in season, it can be worth just having some on hand.
The Kitchn has tips on making rice / cous cous:
You can then make cauliflower crust for pizza pretty easily by mixing in an egg, cheese, and spices. Here’s one recipe I found from Tasty Kitchen:
I’ve also made it without microwaving, by just pre-cooking the crust, and then adding toppings and baking a second time.