Making Sweet and Savory Hawaiian Crockpot Chicken is as simple as following these easy steps:

1. Prepare the Chicken: Place the boneless, skinless chicken thighs in the bottom of the crockpot.
2. Add Pineapple: Sprinkle the pineapple chunks over the chicken.
3. Mix the Sauce: In a bowl, combine the soy sauce, brown sugar, minced garlic, minced ginger, and crushed red pepper flakes (if using). Stir until well blended.
4. Pour Sauce: Pour the sauce mixture over the chicken and pineapple in the crockpot.
5. Add Vegetables: Layer the sliced bell pepper and onion on top of the chicken and sauce.
6. Cook: Cover the crockpot and cook on low for 4-6 hours or on high for 2-3 hours, until the chicken is tender and cooked through.
7. Shred Chicken: Once cooked, shred the chicken using two forks directly in the crockpot, mixing it with the sauce and vegetables.
8. Serve: Serve over cooked rice or quinoa, garnished with chopped green onions.

These straightforward instructions will guide you in creating a delicious meal that everyone will enjoy!