Preheat oven to 400 degrees.
Start making pizza dough by combining yeast, sugar, salt, and warm water. Set aside for a few minutes or until bubbly and then stir in the flour and olive oil.
Set dough aside for 20 minutes to rise.
Cook chicken in a skillet over medium-low heat with some pepper and olive oil (flipping a few times.)
When cooked through, chop chicken into bite-sized pieces and set aside.
In the same skillet you cooked the chicken in, sauté the pepper, onion, and garlic. When they're soft (but not mushy), stir in the chicken, BBQ sauce and Dijon mustard.
Now spread your dough out on a greased pan and place in the oven for 5 - 7 minutes to start cooking before you add toppings to it.
When crust is pulled out, spread out the BBQ mixture evenly on it and top with the cheese.
Bake for 20 - 25 minutes or until starting to brown and bubble.
Let rest 5 minutes before slicing and serving.
Enjoy!