01 - Set oven to 350°F and allow to preheat.
02 - In a large mixing bowl, blend shredded chicken, cream cheese, cheddar cheese, ranch seasoning, and milk until mixture is smooth and homogeneous.
03 - Fold in half of the prepared bacon, reserving the remainder for garnish.
04 - Transfer the chicken mixture to a baking dish and bake uncovered for 20 to 25 minutes until heating through and bubbling at the edges.
05 - Stir the baked mixture and distribute evenly onto the bottoms of each bun.
06 - Top with reserved bacon and, if desired, layer with pickles, lettuce, or tomato. Place top buns to finish assembly.
07 - Serve sandwiches immediately while hot.