Preheat oven to 450 degrees. Place a piece of parchment paper on a cooking tray.
Lay pre-cooked pizza crusts on parchment paper.
In a large bowl, combine mayonnaise, cream cheese, sour cream with a hand mixer to make sure there are no clumps.
To the mayonnaise mixture, add in all spices, parmesan cheese, mozzarella, spinach, artichokes and chicken. By hand, stir until well combined.
Liberally spread approximately 2 heaping cups of the mixture onto the top of each crust and spread it around, up to the edges. More or less depending on the size of your crusts.
Sprinkle additional mozzarella on top as well as additional parmesan cheese prior to going into the oven.
Place pizzas into a preheated oven and bake for 15-20 minutes or top is starting to get golden brown and bubbly.
Let cool a few minutes, then cut into pieces. Enjoy!!