Crock Pot Honey Sesame Chicken

boneless, skinless chicken breast halves or 6-8 boneless, skinless chicken thighs (about 2 pounds)

Salt and pepper

chopped onion

garlic, minced

honey

ketchup

low-sodium soy sauce

red pepper flakes

cornstarch

water

sesame seeds

scallions, chopped

Cooked brown or white rice, for serving