If using the oven, preheat to 190C/170C Fan/Gas 5. Heat the oil in a flameproof casserole dish and fry the onion for about 5 minutes, or until softened. Add the garlic and fry for 1 minute.
Place the sausages on the tomato and vegetable mixture without stirring ... It’s best to choose a floury variety of potato for this recipe, so a Maris Piper or King Edward is ideal.
If you have vegetarian guests, feel free to skip the bacon. We're usually all about the smoky flavor, but for this dish, it's all about the CHEESE. Get the Brussels Sprout Casserole recipe.