Set your oven to 350°F so it’s fully heated before baking.
Cut a round piece of parchment to fit your pizza pan. Place it on the pan and lightly coat it with cooking spray to prevent sticking.
Press the dough evenly into the pan, spreading it all the way to the edges to form a uniform crust.
Bake for 15-18 minutes, until the crust is set and lightly golden.
Remove from the oven and let the crust cool on a rack for about 30 minutes, or until completely cooled.
In a medium bowl, beat the cream cheese, sugar, and vanilla until smooth and spreadable, similar to frosting.
Spread the mixture evenly over the cooled crust, covering the surface edge to edge.
Remove the stems from the strawberries and slice them into even pieces.
Arrange the strawberry slices around the outer edge of the pizza.
Place a blueberry between each strawberry slice, then add a second row of blueberries slightly offset.
Add another layer of strawberry slices just inside the blueberries.
Finish by placing blackberries in the center, fanning them out to fill the space.
Refrigerate for at least 1 hour before serving so everything sets and slices cleanly.