Take stems out of peppers and cut in half lengthwise, remove seeds. This part is up to you - - If you want to boil the peppers about 10 minutes that will cut the bake time down considerably. However, if I have the time I bake them as follows in my directions.
Prepare you rice according to package directions. You can use any kind of rice. I prefer brown.
You can actually use any type of chicken as long as it is cooked and just shred it or cube it. Leftover chicken works great!
Mix all ingredients except peppers, cheese, and sauce.
Fill your pepper halves with this mixture. Pack it in really good!
Place the peppers in an oven safe pan and pour alfredo sauce over and around the peppers. Sprinkle shredded cheese on top.
If you didn't parboil the peppers bake in a 350 degree oven for about an hour. When the peppers are soft they are done.