Easy slow cooker chicken casserole recipe

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When the colder nights come there is nothing better in our household than a nice slow cooker dinner. This easy slow cooker chicken casserole recipe is ALWAYS a winner.

It is a great way to enjoy lots of vegetables, is frugal and takes just minutes to prepare too. You can spend just 5-10 minutes getting this ready and in your slow cooker pot and then leave it to cook for the whole day.

This easy slow cooker chicken casserole recipe can cook on low all day, or even overnight, or can be cooked on high in just a few hours, for those days when you don’t have time.

If you want to get started right away with my easy slow cooker chicken casserole recipe then skip to the end of this post for the full recipe card.

Ingredients for my easy slow cooker chicken casserole recipe

10g butter

10ml olive oil

2 medium onions

350g chicken breast pieces

1 tbsp plain flour

Garlic salt

400g potatoes

200g carrots (or 1 tin of sliced carrots)

300g mushrooms (or 1 tin of sliced mushrooms)

500ml chicken stock (I use 2 low-salt stock cubes)

1 tsp English mustard

1 tsp thyme

1/2 tsp oregano

1/2 tsp celery salt

2 bay leaves

Method for my easy slow cooker chicken casserole recipe

Chop the onion and fry in the butter and olive oil until lightly brown.

Add the onion to the slow cooker pot.

Wash potatoes and chop into bitesize pieces.

Season and flour your chicken breast pieces. Brown lightly in a pan. As I was in a hurry I did not cook through but just seared the outside of each piece.

Add your carrots, mushrooms, mustard, celery salt and herbs.

Add 500ml of chicken stock.

Stir well.

Add 2 bay leaves.

Cook on high for 4 hours or low for 8 hours. Can be left longer if desired, including overnight on low.

Remove bay leaves and serve.

Best herbs for chicken casserole

Personally I feel that thyme works SO well but I also love tarragon, lemon and garlic or rosemary and garlic. I sometimes use leftover air fryer rosemary chicken breast to make an easy version of this.

ALL of the slow cooker recipes on this website have been cooked using a Ninja Foodi OL750UK, or the previous model, but you can use ANY slow cooker, as timings should be very similar.

Simple slow cooker chicken casserole recipe:

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

I love how this easy slow cooker chicken casserole recipe takes just minutes to prepare. It is perfect for the mornings when you have school runs, are racing off to work or just short on time/effort.

Want to make a chicken casserole with dumplings?

Ingredients for dumplings:

100g plain flour

50g suet

Enough water until you get a wet, slightly sticky dough – I usually find a couple of tablespoons are enough.

Method for chicken casserole dumplings:

Mix together the dough. Add the water very slowly so it doesn’t become too wet.

One hour before serving the casserole drop the dumplings in. I make 8-10 dumplings, so they are quite small, and 1 hour is sufficient time for them to be cooked and lovely and fluffy inside.

Can you make a chicken casserole with chicken soup?

Yes! Skip the chicken stock and use a can of soup instead for a richer, creamier casserole. Cream of chicken soup will work best!

Do you need to use chicken breast for this casserole recipe?

No! I use chicken breast as that is usually what I have in but chicken legs, chicken thighs or even chicken drumsticks can work really well for this recipe.

Want to add a splash of wine?

When you brown the chicken you’ll want to add the wine then, to cook off some of the alcohol!

Products I use when making this recipe:

Like this recipe? Fancy trying one of my other slow cooker dinners? Here are some great ones:

Slow cooker chicken curry

Gammon with balsamic glaze in the slow cooker

Slow cooker whole chicken

Beef chilli in the slow cooker

Slow cooker chicken nachos

Why not try one of these fantastic slow cooker accessories:

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