Cook the pasta in a pot of boiling water until done, drain, set aside.

Meanwhile, cook the the bacon in a large non stick pan until crisp. Remove bacon and set aside. In the same pan, add the chicken, butter, and salt and pepper to your liking, cook until no pink remains.

Add the flour to the chicken and stir and cook for a few more minutes. Add the ranch dressing mix and the milk. Stir and cook for a few more minutes to make nice sauce. Remove from heat and add the bacon and stir to combine, then add the cheese stir to combine, then add the pasta and stir to combine. Plate and sprinkle with chopped spring onions for garnish. Serve.