01 - 
                Set your oven to 350°F (175°C) and let it preheat while you prepare the casserole.
              
              
              
                02 - 
                In a large bowl, combine the softened cream cheese, ranch seasoning packet, and sour cream. Stir until completely smooth with no lumps remaining.
              
              
              
                03 - 
                Gently fold in the shredded chicken, cooked pasta, bacon bits, half of the cheddar cheese (about ¾ cup), and the chopped green onions. Season with salt and pepper to your taste.
              
              
              
                04 - 
                Spoon the mixture into a greased 9×13 inch baking dish, spreading it out in an even layer. Sprinkle the remaining cheddar cheese over the top.
              
              
              
                05 - 
                Place the dish in your preheated oven and bake for 25-30 minutes until the casserole is hot throughout and the cheese on top is melted and starting to turn golden around the edges.
              
              
              
                06 - 
                Remove from the oven and let the casserole rest for about 5 minutes before serving. Garnish with additional chopped green onions if desired.