In a large cast iron, cook bacon until crispy and lay bacon on paper towels to drain.
Leave bacon grease in pan.
Dredge chicken in wondra and pan fry in the bacon grease.
Add 2 T. butter to the skillet and brown chicken on each side. Add some salt.
Remove chicken to a plate once browned-does not need to be cooked through.
To the skillet add the remaining 2 T. butter and sauté the garlic and mushrooms a few mins.
Deglaze the pan with the broth.
Add cream and cheese and bring up to a simmer.
Return chicken to the skillet and lower heat to a very low simmer to cook the chicken through. Add fresh spinach to wilt.
Add Rosemary and the cooked bacon, chopped up. (reserve 2 slices for garnish)
Meanwhile, toss the cooked shells with 2 T. butter, salt and parsley and lay on platter.
Lay the chicken on top and spoon the sauce over the top.
Garnish with parsley and chopped bacon.