Heat a tablespoon of the oil in a large non-stick, flameproof casserole dish and fry the sausages gently for 10 minutes, turning every now and then until nicely browned all over. Transfer to a plate to set aside
Fry the bacon pieces in the dish until they begin to brown and crisp then set aside and add to the sausages.
Place the onions in the frying pan and fry over a medium heat for five minutes until they start to soften, stirring often. You should have enough fat in the pan, but if not, add a little more oil.
Add the garlic and cook for 2–3 minutes more until the onions turn pale golden-brown, stirring frequently.
Sprinkle over the chilli powder or smoked paprika and cook together for a few seconds longer.
Stir in the tomatoes, chicken stock, tomato purée, Worcestershire sauce, brown sugar and herbs.
Pour over the wine, and bring to a simmer.
Tip in the sausages and bacon and return to a simmer, then reduce the heat, cover the pan loosely with a lid and leave to simmer very gently for 20 minutes, stirring from time to time.
Drain the beans and rinse them in a sieve under cold running water. Stir the beans into the casserole, and continue to cook for 10 minutes, stirring occasionally, until the sauce is thick.
Season to taste with salt and freshly ground black pepper and serve with rice or slices of rustic bread. Rolls from the Burley Baker are perfect!