Step 1

Cook pasta shells according to package instructions, just until al dente. Drain water and lay shells out on a large cookie sheet lined with parchment paper. Let shells cool completely.

Step 2

Combine butter, garlic, heavy cream and milk in a saucepan over medium heat. Bring to a simmer. Remove from heat and stir in Parmesan and Mozzarella cheese. Season with salt and pepper, to taste.

Step 3

FOR STUFFING SHELLS: In a large bowl add chicken, garlic powder, salt and pepper and chopped broccoli. Toss to combine. Pour in 1 cup Alfredo sauce and stir together. Add a spoonful of Alfredo sauce to the bottom of a greased 9x13-inch baking pan. Fill shells with a large spoonful of chicken and broccoli mixture and place in prepared pan.

Step 4

Pour remaining Alfredo sauce evenly over the shells. Sprinkle tops with Mozzarella and Parmesan cheese.

Step 5

Bake, uncovered, at 350 degrees F. for 25 minutes or until warm and bubbly. Serve and enjoy!