Turkey meatballs served in pita topped with yogurt sauce and shredded romaine

• 1 lb ground turkey
• 2 tsp zaatar seasoning
• 1 tsp salt
• 1 tsp freshly cracked black pepper  
• 2 cloves garlic grated
• 2 tbsp fresh flat-leaf parsley finely chopped
• 1 tsp chili flakes
• 1 tsp sumac
• 4 pita breads
• 2 cups romaine shredded
• 1 small onion finely sliced

Yogurt Garlic Sauce

• ½ cup plain yogurt
• ¼ cup mayonnaise
• 1 clove garlic grated
• ½ tsp black pepper
• ½ tsp sea salt
• lemon zest 1 lemon
• ½ lemon juice 1/2 lemon
• 2 tbsp water or as needed to thin out