(Light grill to medium-high heat or preheat oven to 400 degrees)
Place all vegetables in a large bowl and drizzle with olive oil. Stir gently to coat.
Spray 12-18 inch pieces of aluminum foil with cooking spray (depends on desired portion size, I made 5 large packets)
Evenly divide veggies among the foil pieces, placing them in center of packet. Add desired spices.
Top with chicken chunks, additional spices and Worcestershire (if using). Place butter on top of chicken.
Seal foil around the chicken and vegetables, pinching at seams to seal.
Place on grill, or in oven on a baking sheet, for approximately 25 minutes or until chicken has reached 165 degrees on a meat thermometer.