Preheat the oven to 350 degrees.
In a large bowl, add in your pasta, alfredo sauce, salt, ranch seasoning, chicken, 1 cup of your cheese, and half of your bacon pieces. Stir it all together.
Pour pasta into a 9×13 baking dish.
Sprinkle remaining cheese over the top of the pasta.
Sprinkle bacon pieces over the top of the cheese.
Place in the oven and bake about 20 minutes, or until the cheese is melted and the whole dish is bubbly and hot throughout.