In a large skillet cook the chicken in the Italian dressing. I used enough to cover the bottom of the skillet and let this cook until all the Italian dressing had been soaked up by the chicken.
Spray non stick cooking spray on a large cookie sheet. Roll out the dough in a circle, and spread the marinara sauce around the 1/2 of the dough, think semi-circle. Then cover with the toppings. We used the chicken, chopped onion, cheese, and then a few sprigs of fresh parsley.
Once the toppings are on then take one side of the dough and pull over to the other side, making a semi-circle. To seal the edges, you can use a fork or any other grooved utensil.
Once it was sealed, I poured a little bit of olive oil and sprinkled the top with a bit more fresh parsley.
Bake this in the oven for 15-20 minutes until dough is slightly browned.