Combine everything in the pan

• Place the pasta shells in a 9x13 baking dish.
• Add the Alfredo sauce, chicken stock, shredded rotisserie chicken and Italian seasoning.
• Mix everything together really well directly in the pan.

Bake covered

• Cover the pan with aluminum foil.
• Bake at 400 °F (200 °C) until the pasta is tender and has absorbed the liquid.

Add the cheese

• Uncover the pan and mix the pasta well.
• Scatter the shredded mozzarella over the top.

Bake and broil until golden

• Return the pan to the oven for about 10 minutes so the pasta absorbs more sauce and the cheese melts.
• Broil for the last 2 to 3 minutes to get a golden crust.