Pork · Slow cooker

Best Slow Cooker Sausage Casserole (Easy Crockpot Recipe)

A proper sit-and-forget sausage casserole built around a packet of British bangers, root veg and the surprise twist of half a tin of cream of tomato soup stirred into the gravy. The slow cooker does the lift, the soup does the magic, and you get a Sunday-grade tray of comfort food on a Tuesday.

R By Richard · Adapted from What's For Tea? · Published 7 June 2026
👁 126.8k source views ❤️ 3.5k source likes
⏱Prep 15 min
🍽Serves 4
The BEST Slow Cooker Sausage Casserole | Easy Crockpot recipe

Source video by What's For Tea? on YouTube. This recipe was adapted with strict source-fidelity rules and is marked for human review.

This is a cosy, set-and-forget British sausage casserole cooked entirely in the slow cooker. Pork sausages are browned briefly in a pan, chopped into bite-size pieces and dropped on top of a base of finely sliced onion, carrots, swede and parsnips. A packet of sausage casserole mix gives the gravy its body, sage and thyme carry the herby background, and half a tin of cream of tomato soup is the cook's secret tweak that lifts the whole pot. Five hours on High and it is ready to ladle alongside creamy mashed potato and steamed green beans.

Slow cooker notes: Source is already a slow cooker recipe, no adaptation required. Low setting timings not stated in the video.

Ingredients

Main
  • pork sausages, browned in a pan, then chopped into bite-size pieces
Veg
  • 1medium onion, very finely sliced
  • 2carrots, peeled and roughly sliced
  • 0.5swede, chopped into chunky pieces
  • 2parsnips, cut fairly small
Gravy
  • 1 packetsausage casserole mix
  • 200 mlcream of tomato soup
Herbs
  • 1 tspdried sage
  • 1 tspdried thyme
Seasoning
  • salt
  • black pepper

Method

  1. Brown the sausages in a hot frying pan on all sides for colour, then snip into bite-size pieces with kitchen scissors. They do not need to be cooked through.

    ~8 min

  2. Tip the sausage casserole mix into a 2.5 litre slow cooker.

    ~1 min

  3. Add the sage and thyme.

    ~1 min

  4. Add the finely sliced onion, sliced carrots, chunky swede and small-cut parsnips. Give everything a stir.

    ~3 min

  5. Lay the browned sausage pieces on top of the vegetables.

    ~1 min

  6. Pour over half a tin of cream of tomato soup and season the top with salt and pepper to taste.

    ~1 min

  7. Lid on. Cook on High for 4.5 to 5 hours, stirring once halfway through to bring everything off the bottom.

    ~270 min

  8. Serve over creamy mashed potato with steamed green beans on the side.

    ~2 min

Frequently asked

Do I have to brown the sausages first?
No, but a quick fry in a hot pan gives them colour and stops them looking pale and tired at the end. The slow cooker does the actual cooking.
Can I add potatoes instead of swede or parsnips?
Yes. Cubed potatoes work well if you prefer them to root veg, in which case you can skip the mash on the side.
What if I cannot get sausage casserole mix?
Use gravy powder or gravy granules in its place. The job of this ingredient is to thicken the liquid into gravy, so any savoury thickener does the same work.
Does the soup really make a difference?
The cook reckons yes, and her logic stacks up: tomato soup adds body, sweetness and a tomatoey base to the gravy that water alone will not provide.
Can I leave the sausages whole?
Yes. Chopping them into bite-size pieces is a serving preference, not a cooking requirement.
Extraction notes (transparency): Sausage quantity not stated in transcript (cook refers only to 'my sausages'); set to null. Casserole mix packet size not stated. Half-tin of cream of tomato soup expressed as approximately 200 ml based on a standard 400 ml UK tin. Salt and pepper quantities to taste. Low-setting time not stated.