Chicken Broccoli Alfredo

1 1/2 pounds chicken breasts

1 (16 oz) bag frozen broccoli florets) 

2 (16 oz) jars of Alfredo sauce 

1 large green pepper chopped

1 (4 oz) can sliced mushrooms, drained

Label: Thaw in fridge for 24 hrs. Cook on low for 4-6 hrs. Serve over noodles.