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Slow cooker sausage casserole

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I love to use my Ninja Foodi OL750UK for a variety of meals, and the slow cooker function is great. This easy slow cooker sausage casserole is super simple to prepare, taking just a few minutes of time, and is absolutely delicious. The perfect winter warming dinner at the end of a long day!

Sausage casserole, sausage stew, whatever you want to call it, this dish is packed full of vegetables and delicious flavours. It’ll cook on slow through the day, perfect if you’re working from home like so many of us are these days!

Slow cooking this casserole keeps it packed full of flavour and makes the vegetables wonderfully soft, perfect if you’ve got fussy little ones (like me!) and want to pack them full of goodness this cold and flu season. It is also the perfect comfort food if you’re under the weather and low on time or motivation to cook!

If you’re looking for a slightly more fancy version of this meal be sure to check out my slow cooker sausage cassoulet. This is packed full of hearty flavours and chickpeas.

A blue bowl with mashed potatoes and slow cooker sausage casserole with visible lumps of sausage and carrot rounds.

Ingredients for slow cooker sausage casserole:

5 sausages

3 carrots

2 white onions (use red onion if that’s all you have to hand!)

1 tin of chopped tomatoes (400g approx)

250ml beef stock (or veggie if you’re making this vegetarian or vegan)

Salt and freshly ground black pepper

1 teaspoon of oregano, basil, thyme and parsley (mixed herbs will work nice too)

15g tomato puree

A splash of Worcestershire sauce

Slow cooker chicken tikka masala, slow cooker whole chicken, chicken pie and slow cooker chicken & prawn paella recipes

Method to make a sausage casserole in the slow cooker:

Optional tip: Cut the sausages into bite size chunks.

Brown the sausages lightly. My slow cooker has a sauté function, but you can just use a frying pan if yours doesn’t.

Chop the carrots into rounds.

Slice the onions.

Add all of the ingredients to the slow cooker.

Cook on high for 4 hours minimum, or low for a minimum of 6 hours. Check at least once during the cooking time to ensure it still has plenty of liquid.

I have cooked this on low for up to 10 hours before.

Two air fryer rhubarb crumbles, cooked, in red le creuset ramekins, one heart shaped, one circle

Want to add some dumplings to your casserole?

I have a slow cooker beef casserole with dumplings recipe and you can use the dumplings recipe from that! You’ll need 100g of plain flour, 50g of suet and a splash of water. Make a slightly sticky dough, add little balls to the slow cooker pot one hour before serving and resist opening the lid again until you serve it up.

Want some other vegetable ideas to add to this?

Parsnips work great, as do potatoes and you can skip the canned tomatoes if you want to also.

Sweet potatoes would go nice with this, either as a mash or a baked potato along the side. Yum!

Air fryer cheesy chips (cooked) on greaseproof paper on a baking tray backdrop with text overlay that says 30+ air fryer side dishes

What sausages can you use?

ANY work well for this, as long as you give them a little brown before. I’ve found that some of the Vegan sausages will melt into the sauce a little, but that is just as delicious.

Also, I find Italian Sausage delicious with its fennel based flavour, as well as Heck Italia sausages and also Linda McCartney vegetarian red onion & rosemary sausages work well too.

What to serve with sausage casserole:

We have a LOT of different goodies that we love to enjoy with this dish. Here are some of my favourites to serve up to my family:

Slow cooker pulled pork in brioche buns with coleslaw on a plate

While you’re here why not try out some of my favourite slow cooker cookbooks and accessories?

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If you’ve enjoyed this recipe you might enjoy some of my other slow cooker recipes:

The cooked slow cooker beef stroganoff in a blue bowl

How to cook sausage casserole in the slow cooker:

Slow cooker sausage casserole

A delicious easy slow cooker sausage castile that is prepped in just minutes.

Course Main Course
Cuisine British
Keyword casserole, sausages, slow cooker
Prep Time 5 minutes
Cook Time 4 hours
Servings 3 servings
Calories 379 kcal
Author Katykicker

Ingredients

  • 5 sausages
  • 3 carrots
  • 2 white onions
  • 1 tin of chopped tomatoes 400g approx
  • 250 ml beef stock or veggie if you’re making this vegetarian or vegan
  • Salt and pepper
  • 1 teaspoon of oregano basil, thyme and parsley (mixed herbs will work nice too)
  • 15 g tomato puree
  • A splash of Worcestershire sauce

Instructions

  1. Optional tip: Cut the sausages into bite size chunks.
  2. Brown the sausages lightly. My slow cooker has a sauté function, but you can just use a frying pan if yours doesn’t.
  3. Chop the carrots into rounds.
  4. Slice the onions.
  5. Add all of the ingredients to the slow cooker.
  6. Cook on high for 4 hours minimum, or low for a minimum of 6 hours. Check at least once during the cooking time to ensure it still has plenty of liquid.
  7. I have cooked this on low for up to 10 hours before.

Note: All calorie information is for demonstration purposes only and is based on the specific uncooked ingredients that I used when creating the recipe.

If you enjoyed this post I’d love it if you could pin it on Pinterest!

A blue bowl with mashed potatoes and slow cooker sausage casserole with visible lumps of sausage and carrot rounds.
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