Step 1: In a small bowl, whisk the soy sauce, ketchup, rice vinegar, honey and garlic to combine.
Step 2: Add the chicken to a 4-5 qt slow cooker and pour soy sauce mixture over chicken. Cover and cook on high 2 hours, until chicken is cooked through.
Step 3: To slow cooker, add the broccoli. Cover and cook 1 hour longer, until broccoli is tender. Garnish with the sesame seeds, if desired.
Tip: Serve over rice or quinoa