Creating Grilled Asian Chicken Skewers is easy when you follow these steps:

1. Prepare Skewers: If using wooden skewers, soak them in water for at least 30 minutes to prevent burning.
2. Make Marinade: In a bowl, whisk together soy sauce, honey, rice vinegar, sesame oil, minced garlic, grated ginger, and red pepper flakes (if using).
3. Marinate Chicken: Place the chicken cubes in a resealable bag or bowl. Pour the marinade over the chicken, ensuring each piece is well-coated. Seal the bag or cover the bowl, and refrigerate for at least 30 minutes.
4. Prepare Vegetables: While the chicken is marinating, chop the bell pepper, zucchini, and red onion into bite-sized pieces.
5. Preheat Grill: Preheat your grill to medium-high heat.
6. Assemble Skewers: Thread the marinated chicken and vegetables onto the skewers, alternating between chicken and veggies for a colorful presentation.
7. Grill Skewers: Place the skewers on the grill. Cook for 15-20 minutes, turning occasionally, until the chicken is cooked through and has nice grill marks.
8. Check Doneness: Ensure the chicken reaches an internal temperature of 165°F (75°C).
9. Remove from Grill: Once cooked, remove the skewers from the grill and let them rest for a few minutes.
10. Garnish: Before serving, sprinkle with green onions and sesame seeds for an extra touch of flavor.

These steps will guide you in creating mouthwatering Grilled Asian Chicken Skewers that are sure to impress!