Chop the first 6 ingredients into 1 inch thick pieces.
Stick the meat and vegetables onto the skewers in the order of your choice. You can use bamboo skewers or reusable steel skewers. Use a basting brush to coat the kabobs with olive oil, salt, pepper, and garlic powder.
Grill kabobs on medium heat, turning as needed (10-15 minutes) or until meat is cooked through and vegetables are tender.