01 - Set oven to 350°F (180°C) to prepare for baking the chicken filling.
02 - In a large mixing bowl, add shredded chicken breast, cream cheese, shredded cheddar, ranch seasoning, and milk. Stir thoroughly to blend until creamy.
03 - Gently fold in half of the crumbled bacon into the mixture, reserving the rest for topping.
04 - Transfer the mixture evenly into a baking dish. Bake uncovered for 20 to 25 minutes, until the filling is hot and bubbling.
05 - Stir the baked mixture. Spoon a generous portion onto the bottom half of each sandwich bun.
06 - Sprinkle with the remaining bacon. Add pickles, lettuce, or tomato as desired and cap each with the top bun. Serve sandwiches warm.