I do the same with spaghetti squash and also make lasagna with cabbage leaves instead of noodles.
Boil the cabbage leaves first and then layer just like noodles. It can get a little soupy with the moisture from the cabbage leaves but tastes great.
OOOO Great minds! I have done that too!
I also use Cauliflower to make mashed “potatoes”.
You need to towel dry the Cauliflower before mashing and adding butter! SOOO good!