Add brown rice, diced carrots, Dijon mustard, diced onions, grated garlic, diced celery and seasoning to the slow cooker. Stir to combine.
1 cup brown rice, 3 garlic cloves, 1 onion, 2 cups diced carrots, ½ cup diced celery, 1 tablespoon Dijon mustard
Pour over chicken broth and seasoning, and place the chicken breasts on top. Don't stir.
1 pound chicken breasts, 3 cups chicken broth
Cover with a lid, and cook on HIGH for about 2 hours, or until the chicken is cooked.
Then, remove the chicken breasts from the slow cooker, and shred or dice the meat. Leave it to rest on the side. *
Continue to cook the rice and vegetables for a further 30-90 minutes, or until the rice is cooked. The exact cooking time can vary depending on your slow cooker. *
Add the peas, Parmesan, and shredded chicken to the slow cooker, and stir to combine. The peas and Parmesan will quickly warm up. Add any seasoning to taste, and serve.
1 cup frozen peas, ¼ cup Parmesan