Easy Slow Cooker Chicken Casserole – No chopping, no frying, bung all the ingredients in the slow cooker and leave it to do it’s thing. This is literally the easiest casserole recipe you’ll ever make!

It’s definitely slow cooker season again! I’ve dug mine out from the back of the cupboard and to be honest it’ll probably now live on my counter for the next few months.
If you’ve not yet tried using a slow cooker then here’s why I love them so much.
Benefits of Slow Cookers:
1. They’re cheap to buy and to run. As with anything you can buy cheap and more expensive brands. Mine was £15 from a supermarket and has lasted me years now. Great value!
You can also get more expensive ones that have timers, great if you’re out all day and need to turn it off before you get home.
2. Slow Cookers are brilliant for busy families. You can throw all the ingredients into it in the morning, head out to work and school and come home to a delicious meal. So easy and no fuss!
3. Slow Cookers are a great way of cooking cheaper cuts of meat, especially budget cuts of beef and lamb; meaning you can eat the tastiest dishes for a lot less money.
Speak to your butcher about cheaper cuts of meat as they often have more variety than the supermarket.
4. Slow Cooking can be a really healthy way of cooking your favourite meals. Because you are not frying the ingredients you don’t need to add any oil or butter if you don’t want to.

A Really Easy Dinner Recipe
Some slow cooker recipes require you to pre-fry the meat but I like to make my recipes as quick and easy as possible, especially if you are preparing it in the morning.
So this is a no-fry recipe but if you want to pre-fry the chicken in a frying pan before you add it to the slow cooker you can.
I’m all about a one pot meal! And if you are looking for more ideas for one pot dinners, then head over to the blog and check out our One Pot Recipe. You are guaranteed to find loads of meal inspiration that the entire family will enjoy.
In addition, this is also a no-chop recipe!
I use cheat’s ingredients such a frozen onions and baby carrots which means no peeling or chopping at all. So very little effort is required on your part!

It’ll take just 3 minutes to quickly wash the vegetables and chuck all the ingredients into the slow cooker. I prefer to add the mushrooms later, as they tend to cook quicker than the other veggies but it’s fine to add them at the beginning if you want to.
You can choose to cook this crockpot chicken casserole casserole on high or low. I’ve shown the cook times for both ways on the recipe card below.
Once it’s ready cook up some steamed fresh veggies like broccoli or kale for a delicious and comforting family meal!
This is classic comfort food at it’s best and perfect to come home to at the end of the day!

Recipe Substitutions:
Chicken – I used chicken thighs in this recipe as I think they are the tastiest cut to add to a casserole. They are a fattier cut, but I do think the chicken tastes better from the thigh. But it’s totally fine to use boneless skinless chicken breasts too.
Chicken breasts are more likely to start to fall apart when slow cooked so you might want to add them whole rather than diced to prevent this.
Veggies – Any root veg will work well in this recipe. Try adding parsnip, turnip, swede or chunks of butternut squash.
If you want to add other veggies such as broccoli or green beans, add these at the same time as the mushrooms as they don’t need long to cook.
Gluten Free– To make this recipe completely gluten free just be sure to use certified gluten free stock and gravy granules.

If you try my Slow Cooker Chicken Casserole recipe please do leave me a comment and a star rating below. You can also share your pictures with me on Instagram. I always love to see your creations!
Other Slow Cooker Recipes To Try
It’s not just casseroles you can cook in the slow cooker… why not try one of these family-friendly meals for dinner time:
A really hearty recipe, perfect for those cold winter nights! Teamed with mashed potato, it’s like a hug in a bowl!

Slow Cooker Beef & Broccoli – This slow cooker recipe made with beef and broccoli and served with rice or cauliflower rice is perfect for busy weekdays.
Slow Cooker Macaroni Cheese – I bet you didn’t know you could make this classic meal in the Slow Cooker! This recipe is a firm family favorite.
Slow Cooker Meatball Gnocchi Soup – A small bowl of this meatball and gnocchi soup certainly ticks the warm and comforting box!
Slow Cooker Lamb Curry – Slow cooker meals don’t get better than this! A really easy curry recipe that’s cooked low and slow. The end result is deliciously tender meat that is full of flavour.
Slow Cooker Chicken Fajitas – Fajitas are one meal I know the whole family will demolish! And this slow cooker version really is so easy to make.
Slow Cooker Ragu – A slow cooker ragu recipe that packs in a lot of flavor by using my secret ingredient!


Slow Cooker Chicken Casserole
Prep Time: 3 mins
Cook Time: 180 mins
Total Time: 3 hours 3 minutes
Yield: 4 1x
Category: Dinner
Method: Slow Cooker
Cuisine: Slow Cooker
Description
Easy Slow Cooker Chicken Casserole – No chopping, no frying, bung all the ingredients in the slow cooker and leave it to do it’s thing. This is literally the easiest casserole recipe you’ll ever make!
Ingredients
- 500g / 17.5oz skinless chicken thighs
- 500g / 17.5oz baby potatoes
- 250g / 8.75oz baby carrots
- 50g / 1.75oz frozen onions
- 2 crushed garlic cloves
- 250ml / 1 cup hot chicken stock
- tbsp tomato purée
- 2 tbsp gravy granules
- 1 tsp dijon mustard
- 250g / 5 cups mushrooms
Instructions
- Wash the potatoes, carrots and mushrooms well. No need to peel them.
- Add all of the ingredients except the mushrooms to the slow cooker and mix well.
- Cook on low for 6 hours or high for 3 hours.
- Half way through add the mushrooms.
- Serve with green veg like broccoli or kale.
Notes
The casserole can be cooled and frozen for up to 2 months. To defrost, leave in the fridge overnight and then heat gently in a saucepan until hot through.

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Rosemary says
sounds lively as living alone it will give me many meals and thank you for your time to give me a recipe that does not have cheese in it as I can not live with this product.
Jacqui Page says
I am making this today but I’ve put cubed stewing steak in instead of chicken, will let you know how it turns out…..
Vicky says
Hi Jacqui, please do let us know how it turns out. We love to see and hear about all your creations. Enjoy.
Lisa says
This recipe has been a god send now we are back into the school/work routine. I can plan ahead and have a nice dinner ready for when everyone gets home in the evening. Can you recommend anymore slow cooker recipes please?
★★★★★
Vicky says
Hi, slow cooker meals are a perfect idea for this time of the year, glad is helping making things a bit easier. we have more recipe ideas on our website you may want to try https://www.myfussyeater.com/?s=slow+cooker Please do come back and let us know how they turn out. Happy cooking.
B says
I’m going to try this today actually but I couldn’t find gravy granules at my local jewel. Can I use gravy mix, the powder that you mix with water?
Bianca Carey Spencer says
Hi B, yes you can use those! Hope you enjoy the recipe.
Sandie says
Made today and tweaked a little by adding frozen peas and fresh spinach half an hour before the end – delicious.
Perfect for this old dear to make and have some for another day and still have two portions for the freezer.
★★★★★
Claire says
Loved this recipe! so easy and my kids loved it 🙂
★★★★★
Janet Morris says
This chicken casserole is delicious. Even my fussy grandchildren love it. It is also the quickest and easiest meal to make.
★★★★★
Cassie says
Everybody loved this, only thing is I doubled the flavour ingredients for larger vege portions. Is a staple recipe now!
★★★★★
Naomi says
Probably the easiest recipe I’ve ever found for the slow cooker and it was super tasty too. We will be having this regularly now!
★★★★★
Gemma says
I literally love how easy this was to make and my whole family loved it which is a bonus. I always find it hard to find recipes that dont involve hours of prep. The fact you could throw everything straight into the slow cooker was a breath of fresh air. Highly recommended and will definitely be making again!
★★★★★
Ciara Attwell says
So glad you liked it Gemma!