we used to love this one when we could eat dairy. http://forum.lowcarber.org/showthread.php?t=44087

now i make a really simple egg/flax crust. it's so fast, and actually holds together so that you can pick up your slice and eat it like 'real' pizza. we've been gluten free for a long time so our tastes have adapted a lot to eating without it. people who are used to wheat crust pizza may not appreciate this recipe but it works fine for my family. for me, pizza is all about the spicey meat toppings anyways!!

pizza crust:

4 eggs, 1/2c freshly ground flax, and 2T nutritional yeast, a bit of salt. baked on parchment.

meatzaa is another lowcarb standard that is sure to please: http://forum.lowcarber.org/showthread.php?t=366645