Preheat the oven to 425 degrees.

While the oven is heating, add the onion, olive oil, and sugar to a medium skillet over medium heat. Cook for 20 minutes, stirring occasionally, until the onions have caramelized.

Meanwhile, cook the bacon in a skillet for 3-4 minutes per side or until it is brown and crisp. Place the bacon on a paper towel lined plate to drain. Cut into small pieces

Stretch the pizza dough into a pizza pan that is either sprayed with cooking spray or sprinkled with corn meal. Bake for 10 minutes.

Remove the partially baked crust from the oven and spread with pizza sauce. Sprinkle with Italian seasonings.

Sprinkle the cheese evenly over top of the sauce.

Divide the caramelized onions, bacon, and spinach evenly over top of the cheese.

Bake the pizza for an additional 10-12 minutes or until the cheese is melted and the crust is browned.