Preheat grill pan or skillet over high heat. Toss shrimp in a large bowl with olive oil, garlic, Aleppo, Za'atar and a large pinch of salt and pepper until evenly combined. Once the pan is smoking, drizzle in a bit of olive oil and add the shrimp. Cook until pink and cooked through, about 8 to 10 minutes (depending on the size of the shrimp). Transfer to a plate and set aside.
Cook orzo according to package directions and then drain. Transfer to a large bowl and allow cool slightly. Add the chickpeas, cherry tomatoes, cucumber, red onion, olives, feta, parsley, mint, basil, oregano and a large pinch of salt and pepper.
To make the dressing, in a mason jar (or bowl) combine olive oil, vinegar, lemon juice, mustard, garlic, oregano, red pepper flakes, Italian seasoning (if using) and a large pinch of salt and pepper. Cover and shake vigorously (or whisk) until very well combined.
Add the dressing to the bowl along with the veggies an orzo and toss until evenly combined. Give it a taste and adjust seasoning as needed. Serve immediately or chill for several hours or up to 3 days. Serve with pita chips or warm flatbread. Enjoy!