It doesn't get any simpler than this recipe - just throw the ingredients into your slow cooker and let it do all the work.
This is a great way to eat more vegetables, as you can use almost any you already have that might otherwise go to waste. 😉
If you don't like mushrooms, just add another carrot. Don't have any leeks? Just add another onion or another stick of celery!
This is the go-to dinner that I make the most out of all of my slow cooker recipes.
Money and Time-saving Top Tips!
- Keep an eye out in the supermarket for offers. This could be the end of day discounts on vegetables; perfect to throw in a casserole or stew. They are usually just fine and a long way from going off.
- The same goes for meat; you can find some serious billy bargains towards the end of the day.
- Also, look out for 3 for 2 offers on pre-chopped vegetables. They can be a great time saver, or if you just don’t like chopping up vegetables!
- Usually, they work out expensive, but they're on offer, and they are sometimes cheaper, especially compared to buying the veggies separately.
- You can add some dumplings towards the end of cooking, just put the dumplings on top and pop the lid back on. They will take about 30 minutes to cook.
- Hang on, you're telling me to add English Mustard; woman, are you mad? 😀 Yes, I can hear you now, 'Why do you add hot and spicy mustard to a chicken casserole? Well, let me tell you it seriously makes this dish; in fact, I added 2 tablespoons, but I've stated just 1 tablespoon in the recipe.
And of course, it has to be Colman's English Mustard.
Gravy
Now, it's the delicious gravy that will make or break your chicken casserole, so I suggest you use Bisto Best Chicken Gravy Granules, available in any good supermarket.
How to make it
Please see the full recipe in the printable recipe card at the bottom of this post. Prepare all the vegetables by peeling and chopping.
Throw them into the slow cooker along with the diced chicken. Add the herbs, mustard, black pepper and the bay leaf.
A quick word on salt 😉
Do not be tempted to add any salt, as the gravy granules will be sufficient when added at the end; otherwise, it will end up far too salty.
Dissolve the chicken stock pot plus gravy granules in just 300ml of boiling water and give it a stir, and pour it into the slow cooker.
You will wonder, and perhaps worry, that there doesn't seem to be any liquid.
Fear not! Cooking in a slow cooker produces more liquid as the vegetables release water. So, if you add too much now, you will never be able to thicken it up at the end; if you did, you might end up having to use the whole jar of gravy granules to get it thickened!Be sure to give it a gentle but good stir, then pop the lid on.
Which slow cooker setting to use?
Set the slow cooker to LOW for 7-8 hours, MEDIUM for 5 hours, or HIGH for 4-5 hours.
It got a bit late when I made this, and so I cooked mine on high, and it was nicely cooked in 5 hours.
Look at all that lovely chickeny gravy - all that's needed is a creamy mash, which is what we had with it, but it got too dark to take a picture, so you'll just have to imagine the mashed potato!
You might also like my Slow Cooker Chicken Casserole using Campbell's Soup 😋
Have you tried this recipe? Please leave a ⭐️⭐️⭐️⭐️⭐️ star rating in the recipe card below!

Easy Slow Cooker Chicken Casserole
I think this is best served with a dollop of nice creamy mashed potato; nothing else is needed.
Ingredients
- 2 - 3 skinless chicken breast fillets - cut into large chunks
- 2 carrots - sliced
- 2 stalks of celery - cleaned, stringy bits removed and sliced thinly
- 1 clove garlic - finely chopped or minced
- 1 large onion - peeled and sliced
- 1 leek - cleaned and sliced
- 4-6 chestnut (brown) mushrooms - sliced
- 1 heaped tbsp mustard - I used Coleman's English mustard
- 1 tsp dried mixed herbs - I used an Italian blend
- 1 bay leaf
- pinch of black pepper (don't add salt) as the stock and gravy already contain salt
- 1 Knorr chicken stock pot
- Dissolve 300ml boiling water with 2 tbsps of Bisto Best Chicken gravy granules; you will need to add more gravy granules to thicken at the end of cooking
Instructions
- Add all of the ingredients to the slow cooker.
- Dissolve the stockpot and 2 tablespoons of gravy granules in 300ml of boiling water - you can add more gravy granules to thicken at the end of cooking. Give everything a good stir to mix.
- Pop the lid on the slow cooker and set it to LOW for 7 to 8 hours or HIGH for 4 to 6 hours, but check your slow cooker instructions. Different brands cook at different times.
- When it's fully cooked. Remove the bay leaf and discard it. Turn the slow cooker to HIGH and remove the lid. Using half a cup of liquid from the pot and mix it with about 2-3 tablespoons of gravy granules, then add it back to the slow cooker pot. Doing it this way will help to stop lumps.
- Leave the lid off and let it thicken for a few minutes, adding more gravy granules if you need to. Have a taste and check the seasoning; then that's it, you're all done!
Notes
To serve 4, just add another chicken fillet.Instead of mashed potatoes, and for less work, you could add baby new potatoes - just cut them in half and throw them in at the beginning.
No comments
Post a Comment
I love to hear from everyone so thanks for taking the time to comment. Please note comments containing links will NOT be published.
Cheers
Jan