Trim any extra fat off the chicken breasts. Using a sharp knife, butterfly the chicken breasts to open them to stuff them. Season outside and inside with salt and pepper.
In a small bowl, mix the bacon, cheddar, and cream cheese.
Divide the cheese mixture into the butterflied chicken breasts then close the chicken breasts over the cheese stuffing.
Place the stuffed chicken breasts into the preheated smoker. Smoke the chicken breasts at 225℉ for three hours or until the internal temperature reaches 160℉.
Once the chicken is done cooking, remove from smoker and serve.