A one-pot hearty stew to share with friends and family - you can make ahead and freeze it if you prefer. This recipe is designed to serve 6 people. If you'd like to reduce the quantities, we advise that you cook the entire dish for 6 and save any leftovers, which can be frozen.
Based on 6 servings, adjust as needed.
Heat the oil in a large casserole or very large sauté pan with a lid. Add the pancetta and sausages and sizzle for 10 minutes, turning the sausages occasionally until nicely browned and sticky. Scoop the sausages out onto a plate.
Add the onions, carrot and garlic to the pancetta and continue to cook for 3-4 minutes until the onions soften. Return the sausages to the pan and add the rosemary, lentils, stock, vinegar and tomatoes, then season with salt and pepper. Bring to the boil and simmer rapidly for 5 minutes, then lower the heat, cover and simmer for 45 minutes, stirring every so often until the lentils are tender. (It can now be chilled and frozen for up to 1 month.) Check the seasoning, scatter over the parsley and serve from the pan with a green salad, dressed with a little french dressing, if you wish.