If using frozen cauliflower that has been completely thawed - proceed to the squeezing out the water step. No cooking is necessary
If using frozen or fresh riced caulflower - it will need to be cooked slightly before squeezing
You can microwave or boil the cauliflower, but I prefer to saute it
Heat a little olive oil in a large, deep frying pan - medium heat
Add frozen (or paritally frozen) or fresh riced cauliflower
Cook over medium heat for 5 - 6 minutes until cauliflower just starts to soften, use a spatula to stir the cauliflower while it cooks
Once cauliflower is softened, remove from heat and allow to cool five - ten minutes
Once cooled, place caulitlfower in a nut milk bag or clean dish cloth and squeeze out as much water as you can
There should be a little over a cup of cauliflower after squeezing out the water and compressing
Preheat oven to 400°
Place squeezed cauliflower ina medium mixing bowl
Add egg,, grated, cheese, salt, and mixed garlic if using
Stir all ingredients until everything is well combined
Line baking sheet with parchment paper - or parchment paper on top of silicon liner
Place cauliflower mixture in center of baking sheet
Use hands to flatten into a circle on the baking sheet
It should be about a ¼" thick and should make a 10 - 12" crust
Lightly brush top of crust with olive oil
Bake for 30 minutes until crust is golden on top and a little crisy around the edges
Top with sauce, cheese, and desired toppings
Place back into oven for 10 - 12 minutes until cheese is melted