Well I made this Saturday, from lowcarb friends and other places online:
using the frozen cauli since I have a ton of it.
2 c. cauli
2 egg
2 c mozzarella
After microwaving, I mashed cauli with a potato masher, added egg and cheese, pressed into pan and sprinkled with ground fennel, oregano, and salt and pepper … baked 20 minat 400, and then topped with red sauce (LOTS of oregano and black pepper), then sauteed mushrooms and roasted strips of red pepper, and more mozzarella, and broiled till the cheese melted.
It was GOOD. It was not like a pizza. My husband and son specifically liked it BECAUSE it was not like pizza. It was more like a layered casserole. Will make it again!