I really like cauliflower mash or just steamed cauliflower alone. It's especially yummy with a cheese sauce. I hope you can find a good cauliflower crust pizza. I never have. I'd rather just have very thin regular crust. Or an alternative that I like better than cauliflower crust is to make mini pizzas on fried polenta. You can buy premade polenta and fry it, or make it yourself, which requires a bit of effort.