Ground Beef Pita Sandwiches

Ингредиенты

• 1 cup (250 ml) plain yogurt
• ¼ tsp salt
• 1/8 tsp ground coriander
• 1/8 tsp ground black pepper
• 1/8 tsp ground cumin
• 1/8 tsp ground sumac (see note)
• 3 pita breads, each 8 inches (20 cm) in diameter
• ¾ lb (340 g) lean ground beef
• 1 small onion, finely chopped
• ⅓ cup (15 g) parsley, finely chopped
• 2 tsp breadcrumbs
• 2 tsp ground coriander
• 1 tsp ground cumin
• ½ tsp lemon zest, finely grated
• 2 tbsp (30 ml) olive oil