When I was trying to not to eat gluten I found a cauliflower pizza dough recipe on pinterest, which is gluten free! I typically make my own pizza dough in our bread maker so we're used to that, but I was very surprised how good it was. Obviously it wasn't the same taste, but it is something I'd definitely make again. After that was done I added my sauce, cheese, bell peppers, mushrooms, garlic, onions, ham, pineapple, jalapeno's and seasonings! We had the works pizza and it was delicious!
And here's the link to the recipe: http://www.eat-drink-smile.com/2011/04/cauliflower-crust-pizza.html
