Soak the wooden skewers in water for 20 to 30 minutes. Once soaked, they're ready to be poked with kabob ingredients.
Make the marinade in a bowl or directly in the marinade container or zip bag. Alternatively, use your favorite storebought marinade to infuse your kabobs with flavor.
Placed the cubed chicken in the zip bag or bowl and transfer it into the refrigerator for 30 minutes or overnight. If you have a marinade tray, you can assemble the skewers and marinade them assembled.
Cook:
Preheat the oven to 375F and line a large baking sheet with parchment paper for reasy cleanup.
Remove the chicken from the marinade and discard the marinade.
Alternate threading the chicken, bell peppers, and onions onto each skewer, about 3 pieces each of chicken, bell pepper, and onion for each kabob.
Place the kabobs on the baking sheet and bake in the preheated oven for 20 to 25 minutes, flipping halfway through, until the chicken reaches an internal temperature of 165F.
Remove the kabobs from the oven and serve with your favorite sides.