Cook bacon and set aside. Add chopped onion to the same pan and cook until barely tender. Remove from pan and add chopped peppers. Cook until tender. Onions cook much faster than peppers so it is necessary to cook them separately to prevent the onions from getting overdone before the peppers are cooked.

In large bowl, stir together the cooked chopped chicken, mushrooms, pepper, onion, bacon and cheeses. Add enough dressing to moisten all the ingredients very well. Insert papers into ungreased muffin pan. Add mixture, leaving enough room to fold down corners. Fold corners down, moistening with water and sealing together.

Bake at 350F until crispy and golden brown. Let cool for 10 minutes before eating.