I'm planning on making cauliflower-crust pizza. Can I dry out the riced cauliflower in the oven?

I've had great results ricing the cauliflower in a food processor, squeezing as much excess water out as possible using cheesecloth, running it through a dehydrator, then for the added touch, turning it into flour in an electric coffee grinder. I recently replaced the food processor step with cooking it for a few minutes then mashing it. This seems to get much more moisture out of it and removes more of the cauliflower taste. By squeezing it thru cheesecloth much more moisture is removed and this really cuts down on the amount of time it has to spend in a dehydrator.

What about using a food dehydrator? It requires some planning ahead, but couldn't you use that?

I tried another method to dry out the cauliflower that worked amazingly well. After running through the food processor, spread the cauliflower in a skillet over medium low heat and stir every couple of minutes to release the steam. Took about 15 minutes, and then I was ready to mix with ingredients for the crust.

Oh this is perfect timing. I have just been obsessing over cauliflower crust pizza the past coupe of days. I actually first tried it a few months ago and did try to get the moisture out. The result wasn't that satisfying for me. This time I did't do that, just added eggs, lots of parmiggiano and 2-3 table spoons of flour ( I used amaranth). The result is amazing, check it out yourself here https://www.instagram.com/p/BBXVUrTi-j6/?taken-by=assortedbites :) I'm uploading the full recipe on the blog assortedbites.com

Yes you can use the oven. I too read the recipes and wondered why wring the cauliflower in a dish towel after baking and then add moisture again. The method I used was to bake the riced cauliflower (riced it in the food processor) in oven at 200. When it was dry and started to barely show color, I took it out and mixed it with ingredients to make crust.