Sausage and Lentil Stew

Ingredients

• 1 tblsp olive oil
• 6–8 large sausages
• 150 g pancetta or rashers, cut into pieces
• 2 carrots, peeled and finely chopped
• 1 large onion, peeled and finely chopped
• 2 celery stalks, trimmed and finely chopped
• 1 tblsp dijon mustard
• 1 tblsp tomato purée
• 75 ml red wine
• 300 g puy lentils
• a few thyme sprigs
• 500 ml chicken stock
• sea salt and ground black pepper