01 -
Preheat the oven to 375°F (190°C). Lightly coat a 9x13 inch casserole dish with cooking spray.
02 -
Arrange chicken breasts in a single layer in the prepared dish. Evenly sprinkle kosher salt and black pepper over the chicken. Set aside.
03 -
In a medium skillet over medium heat, sauté chopped onion and minced garlic until translucent and softened, approximately 2 to 3 minutes.
04 -
Add cream of chicken soup, softened cream cheese, and ranch seasoning mix to the skillet. Stir continuously until the cream cheese is fully melted and the mixture is smooth.
05 -
Remove skillet from heat. Stir in sour cream and ½ cup shredded sharp cheddar cheese until creamy and well combined.
06 -
Evenly distribute the cream cheese sauce over each chicken breast, making sure they are completely covered. Sprinkle ½ cup of cooked, chopped bacon over the top.
07 -
Cover the chicken breasts with the remaining sharp cheddar and Monterey Jack cheeses evenly.
08 -
Cover the dish tightly with aluminum foil and bake in preheated oven for 20 minutes.
09 -
Remove the foil and sprinkle the remaining ¼ cup of cooked bacon across the chicken. Continue baking uncovered for another 20 minutes, or until the internal temperature of the chicken reaches 160°F (71°C) and the cheese is bubbly.
10 -
Allow the dish to rest for 5 minutes before serving. Garnish with chopped green onions if desired.