Pour the cream mixture into the pan of mushroom and stir well to combine. Season well with salt and pepper. Add the pasta, broccoli and pasta water to the pan and stir over a gentle heat.

Drain the cooked pasta and mix with blanched broccoli florets. Step 2 - Add Alfredo sauce, shredded chicken, mozzarella cheese, garlic powder and onion powder. Step 3 - Transfer to a casserole dish.

Cook pasta in large saucepan as directed on package, omitting salt and adding broccoli to the boiling water for the last 2 min. Meanwhile, heat dressing in large nonstick skillet on medium-high heat.