Preheat oven to 475 degrees F and prepare baking sheet lined with parchment paper. (PRO TIP: Printer paper catches fire. Do not use.)
Season chicken breasts with salt and pepper and bake for 15 minutes or until cooked through (internal temperature is 165 degrees F at thickest point).
Let them cool, and dice into cubes.
While the chicken is cooking, caramelize the sliced onions with butter over medium heat in a medium skillet until golden and sweet (with a medium nearby) (about 5 minutes).
Roll out your pizza dough to your desired thickness, brush with olive oil. Transfer dough to a pizza stone or pan, or baking sheet lined with parchment paper. (See Pro Tip above.)
Spread a generous layer of Texas BBQ sauce over the dough (or any type of BBQ sauce you want or make).
Top with a layer of shredded Gouda and mozzarella.
Spread caramelized onions evenly over the cheese.
Add the diced chicken pieces.
Bake in the oven for 12-15 minutes, or until the cheese is bubbly and the crust is golden. (Or there is a fire.)