Boil the chicken breast in water until fully cooked (about 15-20 minutes). Let it cool, then shred into small pieces., Cook the white rice according to package instructions., Steam or boil the carrots and peas until soft., Mix the chicken, rice, carrots, and peas together in a large bowl. Add olive oil if desired., Serve once cooled. You can refrigerate leftovers for up to 3 days.