Incredible roasted shoulder of lamb with smashed veg & greens

INGREDIENTS

• 500 g greens, such as white cabbage, Savoy cabbage, Brussels tops or cavolo nero, leaves separated, stalks finely sliced
• 1 large bunch fresh rosemary
• 2 kg quality shoulder of lamb
• olive oil
• sea salt
• freshly ground black pepper
• 1 bulb garlic, unpeeled, broken into cloves
• 750 g potatoes, peeled, cut into large chunks
• 3 large carrots, peeled and cut into small chunks
• ½ large swede, peeled and cut into small chunks
• 75 g butter
• 1 tablespoon flour
• 500 ml organic chicken or vegetable stock, hot
• 2 heaped tablespoons capers, soaked, drained and chopped
• 1 large bunch fresh mint, leaves picked
• 2 tablespoons red wine vinegar