1 onion, thinly sliced
400g chopped tomatoes with herbs
160²µ/5¾´Ç³ú green lentils (preferably Puy)
2 tbsp olive oil
1 chicken or pork stock cube
400g/14oz sausages, ideally spicy sausages such as Toulouse or Spanish-style pork
75ml/2½fl oz oz red wine, or extra stock