Preheat the oven to 190°C (170°C Fan).
Heat the olive oil in a large casserole dish and brown the sausages on all sides. Remove and set aside.
In the same pan, cook the bacon until lightly crisp.
Add the onion, red peppers, carrot, and garlic, and cook until softened.
Stir in the smoked paprika, oregano, tomato purée, and plain flour.
Add the chopped tomatoes, chicken stock, Worcestershire sauce, and thyme, then stir well.
Return the sausages and bacon to the casserole and add the potatoes.
Cover and bake for about 40 minutes, or simmer on the hob until the vegetables are tender and the sauce has thickened.
Season with salt and black pepper to taste.
Garnish with fresh parsley and serve hot.