Preheat the oven to 350°F and lightly grease a 9x13-inch baking dish.
Prepare the biscuits. Cut the refrigerated biscuits into smaller, bite-sized pieces and spread them throughout the bottom of the prepared baking dish.
Add the chicken. Spread the cooked, shredded chicken over the biscuit pieces. For an even easier dinner, use shredded rotisserie chicken!
Add the Alfredo sauce. Pour the entire jar of Alfredo sauce evenly over the biscuits and chicken.
Make it cheesy. Generously sprinkle shredded mozzarella cheese over the top, then finish with Italian seasoning.
Bake at 350°F for about 30 minutes, or until the cheese is melted and bubbly and the biscuit pieces are golden brown and completely cooked through. Check the biscuits in the center before removing the casserole from the oven.
Serve warm and finish with a sprinkle of Parmesan cheese. 😍