Preheat oven to 350 degrees.
Boil pasta shells according to box directions, drain and set aside.
12 ounce box jumbo pasta shells
In a saucepan over medium heat melt the butter and whisk in the flour until it forms a paste.
¼ cup butter, ¼ cup all-purpose flour
Whisk in the chicken stock and cream and let simmer for 2 minutes.
2 cups chicken broth, ½ cup heavy cream
Add in the cream cheese and ranch dressing mix and whisk until smooth.
8 ounces cream cheese, 1 ounce dry ranch mix
Place 1 cup of the sauce on the bottom of a 9x13 baking dish.
In a large bowl combine the shredded chicken with half of the cheese, half of the bacon, and half of the scallions.
2 cups shredded chicken, 2 cups colby jack cheese, 8 slices cooked crumbled bacon, ¼ cup scallions
To the chicken mix add 1 cup of the ranch sauce.
Stuff the shells with chicken mixture and place in rows in the prepared baking dish.
Top the shells with the remaining ranch sauce. Then add remaining cheese and scallions.
Bake for 35-45 minutes until bubbly and golden brown.
Drizzle with ranch dressing if desired.
ranch dressing and parsley for garnish