The Recipe Thread [tm--CajunCook]

I'm wanting to make a "cajun" or "New Orleans" specific flavored pizza. I know that I want to put crawfish and oysters on it, but for those out there that know pizza, the most important part is the sauce. I need help with some ideas for sauces. something very New Orleans. Any help would be very appreciated. THANKS!!!
Maybe a cajun style alfredo sauce?