I LOVE this pizza, and you can be creative with it. This is what I used:
Your favorite pizza crust (I copied the homemade one from Our Best Bites)
Your favorite BBQ sauce
Grilled Red onion slices (saute in butter on the stove)
Cooked, diced chicken marinated in BBQ sauce
Spread BBQ sauce on the pizza dough. (I usually cook my dough slightly before this step so it isn't doughy.) Add chicken, onion, cilantro, and cheese. Feel free to layer as you like, the more you get on there, the better. Bake according to pizza dough directions and savor the deliciousness!