Hot Chili Lamb in Pita Pockets

Ingredients

• 4 whole-wheat pita breads
• 2 tbsp extra virgin olive oil
• 14 oz boneless leg of lamb or neck fillet (trimmed of fat and thinly sliced)
• 1 large garlic clove (crushed)
• 1 tbsp fresh gingerroot (finely chopped)
• 2 tbsp harissa (hot chili sauce)
• 4 tbsp fresh mint or cilantro ((or to taste), roughly chopped)
• 4 tbsp plain low-fat yogurt
• 1/2 cup crisp green salad leaves (shredded)
• 1/2 red onion (thinly sliced)
• 1 (3-inch) piece cucumber (diced)
• Juice of 1/2 lemon
• Salt
• pepper