Slice the mushrooms and fry them in batches with vegetable cooking spray until golden, set aside.
In a 9 x 13 baking pan put a small layer of Alfredo sauce and a small layer of ham bits (it helps to keep the bottom noodle from sticking). Layer the first 3 noodles in the bottom of the pan. Spoon on a few spoonfuls of the sauce to lightly cover the noodles. On top of the first noodle layer, put 1/3 of the cheeses, chicken, mushrooms and ham. Repeat until all 3 layers are complete.
Photo by Sue York/ladailypost.com
Bake at 350 degrees for an hour to an hour and 15 minutes until bubble and golden.