I caught an episode of Secrets of a Restaurant Chef with Anne Burrell. She made pizza dough from scratch and grilled them up to perfection. Perfect for a three day, bbq, holiday weekend!
Her recipe is posted here.
It provides a great foundation, and you can always get creative with the toppings.
I made 2 the other night- bbq chicken, and tomato & cheese. They were simple and it was pretty fun to make too! My words of wisdom: don't make crusts too thick or you'll have a doughy center.
The shape was goofy, I know...but I'm going with "rustic".