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4.75 from 8 votes

Slow Cooker Sausage Casserole

Easy recipe for sausage casserole in your slow cooker, perfect for autumn and winter
Course Main Course
Cuisine Slow Cooker
Keyword family friendly
Prep Time 10 minutes
Cook Time 8 hours
Total Time 8 hours 10 minutes
Servings 4 people
Calories 364kcal
Author Lucy Allen | BakingQueen74



  • sausages (preferably good quality this will prevent them from disintegrating the slow cooker during the long cooking time)
  • 2 red onions chopped
  • 1 yellow pepper chopped
  • 0.5 of large sweet potato chopped
  • 400 g tin chopped tomatoes
  • 1 tbsp tomato purée
  • 250 ml boiling water
  • 1 rich beef stockpot
  • 1 tsp dried rosemary
  • 2 tsp dried oregano
  • Cornflour to thicken if needed


  • Brown the sausages on all sides over high heat in a dry pan. Place them in the slow cooker.
  • Add the remaining ingredients, mix and cook on high for 4-5 hours or on low for 8 hours.
  • An hour before serving, check if the sauce is thick enough. If not, make a paste using 1 tbsp cornflour and a little water, then stir the paste into the pot and let it cook for the last hour, to thicken.


Calories: 364kcal | Carbohydrates: 22g | Protein: 20g | Fat: 22g | Saturated Fat: 12g | Sodium: 159mg | Potassium: 403mg | Fiber: 3g | Sugar: 5g | Vitamin A: 2500IU | Vitamin C: 68.8mg | Calcium: 64mg | Iron: 1.7mg