Add cauliflower florets in small batches to any size food processor. The key is to not overcrowd the bowl  and work in batches. Any size and power food processor works - from this little guy pictured to my 11 cup full size one.

Process cauliflower not too long just until you see the rice texture form. I would say about 20 seconds. As soon as you overstuff food processor with cauliflower, it becomes a mush with large chunks.

If using a head of cauliflower, cut into larger florets so they are more comfortable to hold and prevent skin damage.

Grate on the largest holes of a box grater usually intended for cheese.

Chop cauliflower florets using chef's knife.

The key to success is a sharp knife, stable cutting board and patience. :) This technique is more time consuming than any other but works like a charm.

In either way, check out my post how to cut cauliflower into florets.