01 - Preheat oven to 400°F. Lightly grease a baking dish with cooking spray or butter.
02 - Place bacon in a skillet over medium heat. Cook until crispy, about 6-8 minutes. Transfer to paper towels to drain, then crumble once cooled.
03 - In a medium bowl, combine softened cream cheese, ranch seasoning mix, minced garlic, and black pepper. Mix until smooth and well combined.
04 - Place chicken breasts in the prepared baking dish in a single layer. Season lightly with salt if desired.
05 - Divide the cream cheese mixture evenly among the chicken breasts. Spread to cover the top surface of each piece.
06 - Sprinkle shredded cheddar cheese over the cream cheese layer on each breast. Top with crumbled bacon, pressing lightly to adhere.
07 - Bake for 25 minutes, or until chicken is cooked through (internal temperature reaches 165°F) and cheese is melted and bubbly.
08 - Remove from oven. Garnish with sliced green onions, additional shredded cheese, and fresh chives if using. Serve hot with your choice of sides.