Leftover Roasted Chicken Pita Sandwich

Ingredients

• 2 cups leftover roasted chicken, shredded
• 1/4 cup olive oil
• 1 tablespoon za'atar seasoning
• Salt
• pepper
• 1/2 cup tahini
• 1/4 cup water
• 2 tablespoons lemon juice
• 1 clove garlic, minced
• 1 small red onion, thinly sliced
• 1/2 cup apple cider vinegar
• 1 tablespoon sugar
• 1 teaspoon salt
• 4-6 small pita breads
• 1 cup chopped romaine lettuce
• 1/2 cup chopped fresh parsley
• 1/2 cup chopped fresh mint
• 1/2 cup crumbled feta cheese