Creamy Rooster and Mushroom One Pan Casserole

This creamy rooster casserole is an actual crowd pleaser. I make it as an enormous batch then freeze half for a fast dinner one other night time.
You’ll be able to cook dinner it on the hob (stovetop) or within the oven. It reheats superbly, and there is loads of sauce to soak into your mashed potato and veggies!

Close up of a large pan filled with creamy chicken and mushroom casserole. There is a wooden spoon in the pan.
Bounce to:

I do not find out about you, however I desperately crave creamy sauces and mashed potato at any time when the climate is even marginally chilly.

That is certainly one of my favorite large batch meals to make as a result of:

  • It is nice for feeding a crowd (straightforward to make for 10+ individuals)
  • You can also make it forward
  • It is appropriate for freezing….
  • …..which additionally means you may eat some for dinner and freeze some for a brilliant fast dinner subsequent time

📋 What do we’d like?

Ingredients for creamy chicken and mushroom casserole on a wooden chopping board against a light background.

📺 Watch how one can make it

Full recipe with detailed steps within the recipe card on the finish of this submit.

👩‍🍳PRO TIP Ensure you’ve acquired a really massive frying pan or casserole pan as this recipe is fairly large!

If your loved ones are something like mine with regards to consolation meals like this, you need to hear plenty of ‘Mmmms’ and chomping noises for the primary 5 minutes, earlier than the chatting resumes. At all times the signal of an excellent meal!

Overhead image of creamy chicken and mushroom casserole in a large frying pan on a light background. There is a cream linen napkin and a wooden spoon next to the pan and parsley scattered in and around the pan.

🍽️ What to serve it with

I really like that there is loads of sauce with this dish, so you have acquired sufficient to drizzle over your rooster, potatoes and greens ❤️

🍲 Extra unbelievable Creamy Rooster recipes

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Square close-up image a large pan filled with creamy chicken and mushroom casserole. There is a wooden spoon in the pan.

Creamy Rooster and Mushroom One Pan Casserole

My large batch creamy rooster and mushroom one pan casserole! Cook dinner this dish on the hob or within the oven. Make forward and serve later!

Prep Time 15 minutes

Cook dinner Time 50 minutes

Complete Time 1 hr 5 minutes

Course Dinner

Delicacies British

Servings 10 servings

Energy 315 kcal


  • Place the rooster in a bowl with the flour, salt and pepper. Toss to cowl the rooster within the flour and seasoning.

    5 rooster breasts, 45 g (6 tbsp) plain (all goal) flour, ½ tsp salt, ½ tsp black pepper

  • Warmth the oil over a excessive warmth in a big frying pan (skillet) and dealing in 2 batches, add the rooster. Brown throughout (it does not must be cooked by means of at this level). Take away from the pan with a slotted spoon and put to at least one aspect.

    2 tbsp oil

  • Place the butter in the identical frying pan and soften over a low-medium warmth. Add the onions, garlic, thyme and celery salt and cook dinner for five minutes till the onion softens. Sprinkle on the flour and stir for a minute (will probably be lumpy).

    2 tbsp unsalted butter, 3 small-to-medium onions, 5 cloves garlic, 1 tsp dried thyme, ½ tsp celery salt, 25 g (3 tbsp) plain (all goal) flour

  • Pour in a splash of the inventory and stir, utilizing a whisk till mixed. Proceed so as to add in inventory, just a little at a time, while stirring, till all of the inventory is added and you’ve got a easy sauce with no lumps (the onions will nonetheless be in there although – so it’ll look just a little lumpy due to that).

    1 litre (4.25 cups) rooster inventory

  • Add the milk and proceed to stir over the warmth till the sauce thickens, then add within the lemon juice.

    300 ml (1.25 cups) milk, 2 tbsp freshly squeezed lemon juice

  • Add the mushrooms, the cooked rooster and the salt and pepper. Place a lid on the pan and simmer gently on the hob for 20 minutes.

    20 chestnut mushrooms, ½ tsp salt, ½ tsp pepper

  • **Alternatively you may switch to a casserole dish at this level. Cowl with foil and place within the oven at 175C/350F for half-hour**

  • Take away the lid and stir within the cream, then warmth by means of for an extra 5 minutes (place again within the oven if oven cooking).

    240 ml (1 cup) double (heavy) cream

  • If you would like the sauce to be any thicker, then at this level you may stir within the cornflour slurry. Add just a little splash at a time, while stirring, till you get the thickness you need.

    **Elective** 2tbsp cornflour (cornstarch in USA)

  • Serve the casserole with greens (I wish to serve mine with sprouts, peas and sweetcorn) and a sprinkling of parsley.

    Small bunch parsley

✎ Notes

Make Forward:
You can also make this dish forward, then cool, cowl and refrigerate for a day.
Warmth by means of completely within the oven (coated) at 175C/350F for approx 20-25 minutes. Or warmth by means of on the hob for 10-Quarter-hour on a medium warmth till the rooster is scorching right through.
Add a splash of cream or milk if wanted to loosen it up.

Make the casserole, then cool, cowl and freeze. Defrost completely within the fridge and warmth by means of completely within the oven (coated) at 175C/350F for approx 20-25 minutes. Or warmth by means of on the hob for 10-Quarter-hour on a medium warmth till the rooster is scorching right through.
Lowering the portions:
You’ll be able to halve the portions if crucial – no change to the cooking instances. 
Can I make it within the gradual cooker?
I have never tried this one within the gradual cooker but. Should you strive it, please let me know the way it went. I will replace the notes after I take a look at it utilizing the gradual cooker.
Dietary Data is approx. per serving WITHOUT Serving suggestion of Mash Potato, Sprouts, Peas and Sweetcorn.


Energy: 315kcalCarbohydrates: 13gProtein: 25gFats: 18gSaturated Fats: 8gPolyunsaturated Fats: 2gMonounsaturated Fats: 6gTrans Fats: 0.1gLdl cholesterol: 101mgSodium: 887mgPotassium: 692mgFiber: 1gSugar: 5gVitamin A: 511IUVitamin C: 5mgCalcium: 84mgIron: 1mg

Key phrases autumn, Casserole, Household Meal, winter

This submit was first revealed in September 2017, then up to date Feb 2019 and once more in February 2023 with new photos, recipe video and a little bit of housekeeping.

A number of the hyperlinks on this submit could also be affiliate hyperlinks – which suggests when you purchase the product I get a small fee (at no additional value to you). Should you do purchase, then thanks! That’s what helps us to maintain Kitchen Sanctuary working. The dietary data offered is approximate and may differ relying on a number of components. For extra data please see our Phrases & Circumstances.

Hello I’m Nicky

I like to cook dinner and I need to share with you my favorite, scrumptious household pleasant recipes. I need to encourage you to create unbelievable meals for your loved ones day by day.

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