Creating Sheet Pan Chicken Pitas with Herby Ranch is a straightforward process. Follow these steps to make this incredible meal:

1. Preheat the Oven: Preheat your oven to 400°F (200°C).
2. Prepare the Chicken: In a large bowl, combine olive oil, garlic powder, onion powder, paprika, dried oregano, salt, and black pepper. Add the chicken breasts and coat them well with the marinade.
3. Slice the Vegetables: While the chicken marinates, slice the bell pepper, zucchini, and red onion into thin strips.
4. Arrange on Sheet Pan: Place the marinated chicken breasts on a large sheet pan. Surround them with the sliced vegetables.
5. Bake: Put the sheet pan in the preheated oven and bake for 25-30 minutes or until the chicken is cooked through and the vegetables are tender.
6. Warm the Pitas: In the last 5 minutes of baking, wrap the pitas in aluminum foil and place them in the oven to warm.
7. Prepare the Ranch: While everything is cooking, mix the ranch dressing with chopped parsley for an herby twist.
8. Assemble the Pitas: Once the chicken and vegetables are done, remove them from the oven. Slice the chicken into strips and fill each pita with chicken, veggies, and a drizzle of herby ranch dressing.
9. Serve: Enjoy your delicious Sheet Pan Chicken Pitas warm, garnished with additional parsley if desired.