Yes, you can do that! I would start off with chicken breasts in the morning on low. Add salt, pepper, and enough chicken broth to cover the chicken breast. Let the chicken cook 4 – 6 hours on low. Once the chicken is done, remove the chicken, shred the chicken with two forks, and put the chicken back into the slow cooker. You can then add in the remainder of the ingredients and let the flavors marry together and the rice to fully cook for another 1 hour or so.