Creating Sheet Pan Chicken Pitas with Herby Ranch is straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 425°F (220°C).
2. Prepare Chicken: In a bowl, combine the chicken breasts with olive oil, garlic powder, onion powder, smoked paprika, salt, and pepper. Mix well to coat the chicken evenly.
3. Arrange Chicken: Place the seasoned chicken breasts on one side of a large baking sheet.
4. Add Vegetables: On the other side of the baking sheet, add the sliced bell peppers and red onion. Toss with a drizzle of olive oil and a pinch of salt.
5. Roast: Place the baking sheet in the preheated oven and roast for 25-30 minutes, or until the chicken is cooked through and the vegetables are tender.
6. Slice Chicken: Once cooked, remove the baking sheet from the oven. Allow the chicken to rest for a few minutes, then slice it into strips.
7. Warm Pitas: While the chicken rests, warm the pita breads in the oven for about 5 minutes.
8. Assemble Pitas: In each warm pita, layer shredded lettuce, sliced chicken, roasted vegetables, and cherry tomatoes.
9. Drizzle Dressing: Top with a generous drizzle of herby ranch dressing.
10. Serve: Enjoy your delicious sheet pan chicken pitas warm!