Season your chicken breasts with the garlic salt, onion powder, paprika and black pepper.
Melt the butter over medium high heat in a large skillet.
Quickly sear the chicken on each side, we just want color, not to cook the chicken through.
Add the chicken to the slow cooker.
Whisk together the mustard and honey and pour over the chicken.
Top with the mushrooms and half the crumbled bacon.
Cover and cook on low 4-6 hours until the chicken is tender.
Whisk the heavy cream into the slow cooker sauce.
Top the chicken with the cheese and remaining bacon.
Cover and cook for 5 minutes until cheese is melted.
Garnish with remaining bacon and parsley.
Serve!