Easy slow cooker chicken casserole recipe

Name: Easy slow cooker chicken casserole recipe
Prep time: 20 min
Cook time: 3 h
Total time: 3 h 20 min
Yield: 4 serving(s)
Ingredients: 1 tbsp. olive oil; 1 chicken pieces (eight in total), such as thighs and drumsticks; 1 tbsp. plain flour; 1 onion, finely sliced; 2 celery sticks, thickly sliced; 2 carrots, cut into 3cm slices; 1 leek, thickly sliced; 500 g potatoes, peeled and cut into large chunks; 2 garlic cloves, sliced; 400 mL hot chicken stock; 1 rosemary sprig; Finely grated zest and juice of ½ lemon; Small handful fresh parsley leaves, finely chopped

This simple slow cooker chicken casserole is packed with veggies.

By The Good Housekeeping Cookery TeamUpdated: 07 May 2025

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preview for Slow Cooker Chicken Casserole

It's no secret that we love a slow cooker recipe here at Good Housekeeping and this rich chicken casserole couldn't be easier. This warming recipe is perfect for a hands-off midweek dinner. Simply pop all the ingredients in and let the slow cooker do all the work.

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Yields:

4 serving(s)

Prep Time:

20 mins

Cook Time:

3 hrs

Total Time:

3 hrs 20 mins

Cal/Serv:

380

Ingredients

1 Tbsp.
olive oil
1
chicken pieces (eight in total), such as thighs and drumsticks
1 Tbsp.
plain flour
1
onion, finely sliced
2
celery sticks, thickly sliced
2
carrots, cut into 3cm slices
1
leek, thickly sliced
500 g
potatoes, peeled and cut into large chunks
2
garlic cloves, sliced
400 ml
hot chicken stock
1
rosemary sprig
Finely grated zest and juice of ½ lemon
Small handful fresh parsley leaves, finely chopped

Directions

1. Step 1
  Heat oil in a large frying pan. Season chicken pieces and fry over a high heat to brown all over for about 8min. Remove chicken and transfer to the pan of a slow cooker. Add the flour to the chicken and stir.
2. Step 2
  In the empty frying pan, fry the onion, celery, carrots, leeks and potatoes over a high heat for 8 min until just coloured all over, add the garlic, fry for 30sec more then add the vegetable mixture to the slow cooker.
3. Step 3
  Pour the stock into the slow cooker. Add the rosemary and lemon zest, cover with the lid and cook for 2.5-3hr on high until the chicken is tender. Check seasoning, add lemon juice to taste, and sprinkle over the parsley before serving.

Brown the chicken pieces and veg before adding to your slow cooker to enhance the flavour, but if you want to save time, this recipe still works by popping everything straight into the slow cooker instead.

Follow our guide to the best slow cookers on the market, before browsing our top slow cooker tips for delicious slow cooker recipes every time.

If you feel there's too much liquid in the finished dish pour the stew through a colander into a wide pan (reserving all the meat and veg) and bubble the juices over a high heat, sampling every so often until the taste is intense as you desire. If it's still not thickening to your liking, remove 1tbsp sauce and mix with 2tsp cornflour to form a paste. Return this paste to the pan, along with the rest of the sauce, and boil until thickened.

For more inspiration, check out our best chicken casserole recipes.