01 -
Preheat the oven to 375°F (190°C).
02 -
In a saucepan over medium heat, melt the unsalted butter. Whisk in the flour and cook for 1 minute. Gradually add whole milk, whisking constantly until the sauce thickens. Blend in softened cream cheese until smooth, then stir in ranch dressing and garlic powder.
03 -
Spread a thin layer of the sauce at the bottom of a greased 9x13-inch baking dish. Arrange 3 cooked lasagna noodles over the sauce. Top evenly with one-third of the shredded chicken, crumbled bacon, mozzarella, cheddar, and sauce.
04 -
Repeat the layering process two more times with noodles, chicken, bacon, cheeses, and sauce, creating three layers in total.
05 -
Cover the dish with foil and bake for 25 minutes at 375°F (190°C).
06 -
Remove the foil and bake for an additional 10 to 15 minutes until the top is golden brown and bubbling.
07 -
Allow the dish to rest for 10 minutes to set. Garnish with freshly chopped parsley if desired, then slice and serve.