This Slow Cooker Sausage Casserole is rich, savoury, and packed with tender sausages, carrots and peas in a deep onion gravy — served here spilling out of a giant Yorkshire pudding with creamy mashed potato for the ultimate comfort dinner.
Ingredients
- 8 pork sausages
- 1 tbsp vegetable oil
- 1 large onion, sliced
- 2 garlic cloves, minced
- 3 carrots, sliced into rounds
- 1 tbsp plain flour
- 500ml (2 cups) beef or chicken stock
- 2 tbsp Worcestershire sauce
- 1 tbsp tomato purée
- 1 tsp dried thyme
- 1 bay leaf
- Salt and black pepper, to taste
- 100g (¾ cup) frozen peas
- To serve: mashed potato and giant Yorkshire puddings
Slow Cooker Sausage Casserole: Instructions
- Heat the oil in a frying pan and brown the sausages on all sides for 4–5 minutes. This isn’t essential but adds extra flavour.
- Transfer the sausages to the slow cooker.
- In the same pan, soften the onion and garlic for 2–3 minutes, then add to the slow cooker along with the carrots.
- Sprinkle over the flour and stir to coat the sausages and vegetables lightly.
- Pour in the stock, Worcestershire sauce, and tomato purée, stirring well.
- Add the thyme, bay leaf, salt, and pepper.
- Cover and cook on low for 6–7 hours, or high for 3–4 hours, until the sausages are cooked through and the sauce has thickened.
- Stir in the frozen peas during the last 20 minutes of cooking.
- Remove the bay leaf before serving.
- Meanwhile, prepare mashed potato and bake giant Yorkshire puddings according to package instructions.
- Spoon the sausage casserole into the Yorkshire pudding cases.
- Top with a generous scoop of mashed potato and extra gravy, then serve hot.
A true British classic — rich, filling, and perfect for family dinners on cold nights.

