Grilled Chicken Kabobs

In a medium bowl, whisk together 4 tablespoons olive oil, balsamic vinegar, lemon juice, Dijon, brown sugar, Worcestershire, garlic and Italian seasoning; season with salt and pepper, to taste. Reserve 1/3 cup and set aside.

In a gallon size Ziploc bag or large bowl, combine chicken and olive oil mixture; marinate for at least 1 hour to 4 hours, turning the bag occasionally. Drain the chicken from the marinade.

Thread chicken, zucchini, bell peppers, and onion onto skewers. Brush with remaining 2 tablespoons olive oil; season with salt and pepper, to taste.

Preheat grill to medium heat.

Add skewers to grill, and cook, turning occasionally, until the chicken is completely cooked through, reaching an internal temperature of 165 degrees F, about 10 minutes. Brush skewers with reserved olive oil mixture, cooking for an additional 1-2 minutes.

Serve immediately, garnished with parsley, if desired.