This recipe for Slow Cooker Sausage Casserole is of the 'chuck it in and leave it to cook all day' school of cooking. Almost no prep - just some chopping and mixing. Little enough to do in the morning before leaving for work.

Two categories of Slow Cooker/ Crock Pot recipes
1. Chuck it in and leave to cook all day
These are work-day meals when you don't have much time in the morning for preparation but you want to come home to something ready to eat.
These dishes are also ideal for families that want to eat at different times. Your teenage children can help themselves and you know they're getting a decent meal even on days when you will be late back. Just make sure they know it's not all for them!
2. Weekend slow cooker recipes
These recipes often don't need a full day's cooking, but they're great when you're out for the afternoon and want dinner waiting for you when you get home.
They often need more preparation, e.g. browning the meat and softening the veg. Browning can improve the flavour of the meat as it seals in the flavour, and some ingredients, like mushrooms and onions, are definitely better if they are cooked a bit before putting in a casserole.
Why use a Slow Cooker?
For me, the slow cooker is a way to make life easy, not an alternative to my oven.
I read a comment about a CrockPot recipe book complaining that all the recipes were just modifications of ordinary recipes - there was nothing new. Well, yes! The point of the slow cooker is to enable you to have a meal ready at the end of the day that hasn't needed any attention while you've been out.
There are a very few recipes where a long slow cook is what's required for a particular dish, and you don't necessarily need a slow cooker for that. But if you have one...
Common problems with Slow Cooker dishes:
1. The dish turns out too watery.
The liquid doesn't evaporate at the low temperatures in the slow cooker, so you have to add less, or make sure it's thickened somehow.
For this recipe, I use a tin of baked beans and a tin of chopped tomatoes with only a little extra water.
If your tomatoes are watery, you probably won't need extra liquid - in fact, you may need some tomato puree to thicken it up. I've tried so many brands of tomatoes, looking for one that isn't full of thin liquid. It can be a bit of trial and error to find a good one. My current favourite brands of tomatoes are Tarantella and Napolina, which I buy by the dozen as I hate to run out
2. Vegetables aren't cooked
Vegetables actually take longer to cook than the meat in your Slow Cooker The trick here is to slice them very thinly.
Slower cooking is actually a good thing - otherwise, you would have mushy potatoes and carrots in your casseroles. You just need to be aware of the process. Here, I use potatoes, thinly sliced, so that they cook well.
This Slow Cooker Sausage Casserole is very forgiving. I leave it cooking for 10 hours on LOW and it's as lovely as 5 hours on HIGH. You could add some frozen peas, but the beans and potatoes are technically enough.
How do you make Slow Cooker Sausage Casserole gluten-free?
- Buy gluten-free sausages - easy to find in most supermarkets
- Check your Worcester Sauce label. If it's gluten-free it should say so. Biona make a GF Worcester Sauce.
Can you use vegetarian sausages?
Readers have successfully made the casserole with Linda McCartney vegetarian sausages (see comments below). They brown the sausages first to give a better texture.
Can I freeze the leftovers from Slow Cooker Sausage Casserole?
You definitely can. I often make twice as much and freeze the rest for a day of no cooking.
What else can you cook in a Slow Cooker?
Apart from meals, I make Chicken or Turkey Stock in the slow cooker and then make an easy Vegetable Soup.
In the winter we have Mulled Wine when we entertain - so easy to keep it going all day or evening!
On Christmas Day I cook Red Cabbage in the Slow Cooker and forget about it while I sort out the turkey and the rest of the trimmings.
I can't really be bothered with cakes and puddings (apart from Rice Pudding) or anything that takes only a couple of hours.
What equipment do you need?
- Digital Slow Cooker - If you're bewildered by which one to buy see 5 tips for Buying a Slow Cooker
- Slow Cooker Liners - If you want to reduce the washing up, use a liner.
If you like this...
...Why don't you try:
Slow Cooker Apricot Chicken Casserole
Slow Cooker Lamb Shanks in Red Wine
Slow Cooker Rice Pudding
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Recipe
Slow Cooker Sausage Casserole
Ingredients
- 300-500 g new potatoes
- 8-12 thick sausages, pork, beef, chicken, or vegetarian (see Note)
- 1 x 400g can chopped tomatoes
- 1 x 400g can baked beans
- 1 tablespoon Worcester Sauce (15ml)
- 2 teaspoons dried mixed herbs (10ml)
- 50 ml red wine or stock
- 50 ml hot water
Equipment
Instructions
- Slice the potatoes thinly (approx. ½ cm)300-500 g new potatoes
- Cut each sausage into 3 pieces and put in the bottom of the Slow Cooker8-12 thick sausages,
- Empty the tins of tomatoes and beans, with the Worcester Sauce, herbs, wine or stock, and hot water into a bowl and mix thoroughly1 x 400g can chopped tomatoes, 1 x 400g can baked beans, 1 tablespoon Worcester Sauce, 2 teaspoons dried mixed herbs, 50 ml red wine or stock, 50 ml hot water
- Pour about a quarter of the sauce over the sausages
- Add the potatoes and the remaining sauce in two batches and stir to ensure all the potatoes are covered
- Cook for 5-6 hours on HIGH or 8-10 hours on LOW










Nicky says
Hi
Can I freeze left overs?
Thanks
Susie says
Hi Nicky, Definitely you can freeze what's left. I often make extra so I've got a meal in the freezer for another day!
Cheers - Susie
Colin says
Just wondered what kind of stock would go best as I can't use red wine as I work in a care home
Susie says
Hi Colin,
Any stock. I use chicken stock because I often cook a chicken and I make stock with the bones (in the slow cooker). Otherwise I'd use a vegetable bouillon like Marigold but you could use stock cubes.
Cheers - Susie
Denise says
Hi Susie
I really want to try this recipe but I only have a small slow cooker and I live on my own, I don’t mind have extra as I can freeze some but please can you advise how to make it with less ingredients? Thank You.
Susie says
Hi Denise,
You may find that this fits in your slow cooker, as I could make a larger quantity in mine.
You could halve the ingredients. Alternatively mix it all up except the potatoes and only cook half, with half the potatoes. Freeze the rest, ready to cook another time.
Cheers - Susie
Carissa says
I only have thin bbq sausages will they work? Should I cut down the cooking time? Also does it matter if ur slow cooker is bigger mine is a 5 litre one? Thanks
Susie says
Hi Carissa, THin sausages are fine. A larger cooker is fine also. Let me know how it turns out.
Cheers - Susie
Nikki says
How many calories roughly per 100g
Caroline says
HI,
How many calories per serving?
Michelle Bond says
Recipe looks delicious! I have just a couple of questions... I have some small (ish) red skinned king Edward potatoes.. will they work fine? Also, which stock works best in your opinion... Vegetable, beef or chicken? Many thanks!
Susie says
Hi Michelle. The potatoes should be fine. I use chicken stock if it's in the freezer otherwise Marigold vegetable bouillon powder (mostly because it's convenient).
Cheers- Susie
Lisa says
Do you brown off the sauages frist before putting them in slpw cooker
Susie says
Hi Lisa. I don't brown the sausages. Just put them in!
Cheers- Susie
Andrea Lane says
Hello there,
This sounds delicious and would help in using up some ingredients that I have. The only issue is that I only have tinned potatoes at home - would they be ok to use and if so, how thinly would you slice them?
Thanks so much 🙂
Susie says
Hi Andrea.
As tinned potatoes are already cooked you want to leave them in thicker pieces. Depending on size you could cut them in half or quarter. You could leave tiny ones whole. Let me know how it goes.
Cheers - Susie
Andrea Lane says
Hi Susie,
Did exactly as you suggested and just cut each of the tinned new potatoes in half. They were perfect. Also, I ended up making the casserole with frozen vegetarian sausages (that I cooked prior to adding to the slow cooker) and it all tasted delicious! Thanks for sharing your recipe!
Andrea
Susie says
Great! Glad you liked it 🙂
Vickie says
Hi Susie,
I’m new to slow cooking but was recommend to start as I don’t have a lot of time to cook. It’s currently cooking but I feel I’ve put too much liquid in, I thought the potatoes and sausages would need to be completely covered but your picture looks like it doesn’t need to be. I’m hoping it’ll turn out nice and not just a runny mess lol
Susie says
Hi Vickie,
You don't need to cover food in a slow cooker because you're getting a steaming effect - so the food cooks in the steam! Having said that, it's better to have vegetables like potatoe at the bottom, covered in the liquid so that they cook thoroughly.
Cheers - Susie
Sarah says
Going to be giving this a go tomorrow but don’t have any tinned tomatoes in the cupboard. Do you think it’ll do just as well with passata?
Susie says
Hi Sarah. It should be fine. A bit more liquid than using tomatoes but this recipe can probably take it. Let me know how it works.
Cheers - Susie