Slow Cooker Sausage and Beans with Cheesy Mash

This slow cooker sausage and beans recipe is comfort food at its best — homemade baked beans, juicy sausages and a golden, bubbling cheddar mash topping, all made easy thanks to your slow cooker.

I put this on before the school run on a busy weeknight, and by the time we’re all home, starving and a bit frazzled, dinner practically makes itself. There are some meals that just feel like home, and this is definitely one of them.

I love a recipe that doesn’t need fancy ingredients or hours spent standing over the hob, and this slow cooker sausage and beans ticks all those boxes. It’s hearty, comforting and wonderfully simple, but making the baked beans from scratch takes it from an everyday sausage and beans dinner to something that feels a little more special.

It’s also a brilliant family-friendly slow cooker recipe for those days when you want dinner sorted ahead of time. Let the slow cooker do the work, prepare your mash towards the end, then finish everything under the grill for that irresistible golden, crispy cheese topping.

More comforting recipes from James & Thyme

If you love a proper comforting dinner, you might also like my Hearty Beef Stew — another simple, slow-cooked favourite packed with tender beef, vegetables and rich gravy. It’s exactly the sort of cosy, homemade food I love making.

For a Sunday dinner, try my Lemon, Garlic & Herb Whole Roast Chicken with Creamy Mashed Potatoes, Roasted Tenderstem Broccoli and Homemade Chicken Gravy, or serve up my Best Roast Potatoes – Crispy on the Outside, Fluffy in the Middle alongside your next roast.

Why you’ll love this slow cooker sausage and beans

• Easy to make – the slow cooker does most of the work.
• Homemade baked beans – made with simple cupboard ingredients rather than a tin.
• Family friendly – hearty, familiar flavours that are easy to love.
• Proper comfort food – sausages, beans, mash and melted cheese. What’s not to like?
• Great for batch cooking – leftovers reheat beautifully.
• A complete one-dish dinner – protein, carbohydrates and plenty of fibre from the beans.

Ingredients

For the sausage and homemade baked beans

• 8 pork sausages – your favourite variety
• 2 x 400g tins haricot beans – drained and rinsed
• 1 large onion – finely sliced
• 2 garlic cloves – minced
• 2 x 400g tins chopped tomatoes – the sauce base
• 2 tbsp tomato purée – adds richness
• 2 tbsp Worcestershire sauce – savoury depth
• 1 tbsp Dijon mustard – gentle warmth
• 1 tbsp honey – balances the tomato sauce
• 1 tsp smoked paprika – subtle smokiness
• 1 tsp dried mixed herbs – extra flavour
• 150ml chicken or vegetable stock – loosens the sauce
• Salt and black pepper – to season
• 1 tbsp olive oil – for browning the sausages

For the cheesy mash

• 1–1.2kg Maris Piper potatoes – ideal for fluffy mash
• 50g butter – makes the mash creamy
• 100ml milk – for a smooth texture
• 100g mature cheddar – for the golden topping
• Salt and black pepper – to season

How to make slow cooker sausage and beans

1. Brown the sausages

Heat the olive oil in a large frying pan over a medium-high heat.

Add the sausages and brown them all over for around 5–7 minutes. They don’t need to be cooked through at this stage — we’re simply adding some lovely colour and flavour.

Remove them from the pan and set aside.

2. Make the homemade baked bean sauce

Using the same pan, add the sliced onion and cook for 3–4 minutes, until it starts to soften.

Add the garlic and cook for another minute.

Stir in the chopped tomatoes, tomato purée, Worcestershire sauce, Dijon mustard, honey, smoked paprika and dried herbs.

Pour in the stock and season with black pepper. Stir everything together.

3. Add everything to the slow cooker

Add the drained haricot beans to your slow cooker.

Pour over the homemade tomato sauce and give everything a gentle stir.

Nestle the browned sausages into the beans.

Cover and cook until the sausages are cooked through and the sauce has thickened.

LOW: 7–8 hours
HIGH: 4–5 hours

4. Make the mashed potato

Towards the end of the cooking time, prepare your potatoes.

Peel and chop the potatoes into evenly sized pieces, then place them in a pan of salted water.

Bring to the boil and cook for around 15–20 minutes, or until completely tender.

Drain well and return the potatoes to the warm pan.

Add the butter and milk, then mash until smooth and creamy. Season with salt and black pepper.

5. Assemble

Once the sausages and beans are ready, transfer the mixture to an ovenproof baking dish.

Spoon the mashed potato over the top and spread it evenly across the surface.

Finally, scatter over the grated mature cheddar.

6. Grill until golden

Place the dish underneath a hot grill for 5–10 minutes, or until the cheese is melted, bubbling and beautifully golden.

Keep a close eye on it — the cheese can go from golden to very brown quite quickly!

Serve hot and enjoy.

My tips for the best sausage and beans

Brown the sausages first.
You can technically add them straight to the slow cooker, but browning them first gives them much better colour and flavour.

Don’t skip the homemade bean sauce.
The combination of tomato, Worcestershire sauce, Dijon and honey gives the beans that lovely sweet, savoury and slightly tangy flavour.

Use Maris Piper potatoes.
They’re naturally fluffy and make wonderfully creamy mash.

Don’t make the mash too wet.
You want it thick enough to sit beautifully on top of the sausage and bean mixture.

Get the grill really hot.
A hot grill gives you that gorgeous bubbling, golden cheddar topping without needing to keep the whole dish in the oven for ages.

Can I make this ahead of time?

Yes. You can prepare the sausage and bean mixture ahead of time and keep it covered in the fridge.

You can also make the mashed potato ahead of time. When you’re ready to eat, assemble the dish, add the cheddar and grill until piping hot and golden.

If you’re reheating leftovers, make sure they are piping hot all the way through before serving.

Can I freeze sausage and beans?

Yes. The sausage and bean mixture freezes well.

Allow it to cool completely before transferring it to a suitable airtight container and freezing.

The mashed potato can also be frozen, although freshly made mash will give you the best texture for the final cheesy topping.

Defrost thoroughly in the fridge before reheating and make sure the dish is piping hot throughout.

Can I use different sausages?

Absolutely.

Pork sausages work particularly well here, but you could use Cumberland, Lincolnshire or herby sausages depending on what you have.

For a lighter version, you could also use reduced-fat pork sausages or chicken sausages.

What beans are best for homemade baked beans?

Haricot beans are my favourite for this recipe because they’re small, creamy and hold their shape well.

Cannellini beans would also work, although they’ll give you a slightly different texture.

What can I serve with sausage and beans?

Honestly, this dish is pretty complete on its own thanks to the beans, sausages and mashed potato.

If you want to add some vegetables, try:

• Steamed broccoli
• Tenderstem broccoli
• Green beans
• Peas
• Roasted carrots

A simple green vegetable alongside it works particularly well with the rich tomato sauce and cheesy mash.

A little nutrition

I love recipes that are comforting and bring something nutritious to the table, and this one earns its place on a family dinner rotation.

A serving (based on 6 servings) works out at roughly 740 kcal, with 32g protein, 63g carbohydrates and 12.5g fibre — largely thanks to the sausages and the haricot beans, which are one of the better plant-based sources of fibre. The chopped tomatoes contribute vitamin C and lycopene, while Worcestershire sauce and Dijon mustard add flavour depth without much in the way of added sugar or salt compared with a shop-bought sauce.

Because the baked beans are made from scratch, you’re also in control of the sugar and salt content — most tinned baked beans carry more of both than you’d think. Adding a side of steamed greens is an easy way to boost the fibre and micronutrient content even further.

(Nutrition figures are approximate and will vary depending on the exact sausages and portion sizes used.)

Storage

Store leftovers in an airtight container in the fridge for up to 3 days.

Reheat thoroughly until piping hot before serving.

If you’ve already assembled and grilled the dish, the cheesy topping may soften slightly when reheated, but you can pop it back under the grill for a few minutes to crisp it up again.

Frequently asked questions

Can I put raw sausages straight into the slow cooker?

Yes, but I recommend browning them first. It adds much more flavour and gives the sausages a better colour.

Can I make this without a slow cooker?

Yes. The sausage and bean mixture can be cooked gently in a large casserole or saucepan on the hob until the sauce has thickened and the sausages are cooked through. You can then add the mash and cheddar and finish under the grill.

Can I use tinned baked beans instead?

You can, but the homemade baked beans are what make this recipe different. The tomato sauce is really simple to make and gives you a richer, more savoury flavour.

Can I add vegetables to the beans?

Definitely. Finely diced carrots, peppers or celery would all work well in the tomato sauce. It’s also an easy way to add extra vegetables to a family meal.