• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Nicky's Kitchen Sanctuary logo

  • > Start Here
  • The Recipes
    • Browse all categories
    • Asian
    • Dinner
    • Pasta
    • Roast Dinner
    • Curries
    • Sides
    • Soups
    • Big Batch
    • Quick Dinner Recipes
    • Skinny Recipes
    • Street Food
    • Lunch
    • Gluten Free
    • Vegetarian
    • Cakes & Treats
    • BBQ
    • Breakfast & Brunch
    • Drinks
    • Appetizers
    • Sauces and Dips
  • My New Book
  • Blogger Resources
    • Living The Blog
    • How to start a food blog
    • Income Reports
  • About
    • About
    • Contact
    • Terms and Conditions
    • Privacy Policy
    • Cookie Policy
  • Sign-Up
  • Nav Social Menu

    • Facebook
    • Instagram
    • Pinterest
    • Twitter
    • YouTube
go to homepage
Homepage link
  • > Start Here
  • All Recipes
  • Never miss a recipe!
  • 20 Minute Meals
  • Appetizers & Party Food
  • Asian
  • Curries
  • Dinner
  • One Pot
  • Pasta
  • Roast Dinner
  • Sides
  • Slow Cooked
  • Soups
  • Street Food
  • Terms and Conditions
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
    • YouTube
  • ×

    Home > One Pot

    Creamy Chicken and Mushroom One Pan Casserole

    Published: Feb 24, 2019 · Modified: Aug 1, 2021 by Nicky Corbishley

    Go to Recipe Go to Video Print Recipe
    Two images of creamy chicken and mushroom casserole - top on in pan, bottom one in bowl with mashed potatoes and green veg.

    My big batch creamy chicken and mushroom one pan casserole! Perfect comfort food.
    Overhead photo of Creamy Chicken and Mushroom One Pan Casserole in a pan on a blue background. Parsley and lemon scattered around the pan,
    I don't know about you, but I desperately crave creamy sauces and mashed potato whenever the weather is even marginally cold.

    This is one of my favourite big batch meals to make because:

    • It's great for feeding a crowd (easy to make for 10+ people)
    • You can make it ahead
    • It's suitable for freezing....
    • .....which also means you can eat some for dinner and freeze some for a super quick dinner next time

    I made this quite a lot when we used to go for our bi-weekly visits to my grandad's. Such lovely memories of all of the family sitting around his little table in the kitchen, sharing a meal and having a good catch-up.  This recipe would easily feed 8 adults and 3-4 kids!

    The kids are a bit more grown up now, but we have new little ones in the family. Gracey now plays the mother hen, looking after the smallest ones when we have our family get-togethers. So cute to see them all playing- even though the ages range from 2 to 12.

     

    We start the recipe by coating the chicken in flour and seasoning. Then we fry it in a pan with oil until sealed. Remove from the pan and add a good knob of butter to fry up some onions. Add flour to the onions (this will thicken the sauce), then stir in chicken stock a little at a time until thickened.

    Collage of images for initial steps of making creamy chicken casserole including frying floured chicken, adding butter to pan, cooking onions with flour and adding stock to pan.

    Next we stir in milk and a squeeze of lemon juice. Add in lots of chopped mushrooms, the sealed chicken and some salt and pepper. Then let it simmer for 20 minutes.

    Collage of finishing steps for making creamy chicken casserole - including bubbling the sauce, adding mushrooms and chicken and putting the lid on to simmer.

    Once it's simmered, stir in the cream to finish it off (if you want it thicker, you can add a little cornstarch slurry too). Then serve with a big pile of mashed potatoes and some greens.

    Bowl of creamy chicken mushroom casserole with mashed potatoes, sprouts and green beans on blue background. Lemon, parsley and pan of casserole in the background.

    If you're family are anything like mine when it comes to comfort food like this, you should heat lots of 'Mmmms' and chomping noises for the first 5 minutes, before the chatting resumes. Always the sign of a good meal!

    When I first published this post back in late 2017 (i've update it this time around with more new photos, tips, process shots and recipe video below), our second site, Living the Blog had just gone live. We got 370 page views on the first full day - which is more than we got in the first TWO MONTHS of Kitchen Sanctuary going live!
    We're still trying to grow our second website (whenever we have the time), so if you're interested in blogging, or you're already a blogger, check it out. We have lots of articles on there - including income reports, our top plugins, my timetable, our photo and video equipment, plus lots more.

    Sauce being spooned onto a bowl of creamy chicken mushroom casserole with green veggies.

    I hope you enjoy the recipe. If you like this one, try my Creamy Pork Casserole or my Chicken and Potato Bake too! Also here are more of my big batch meals.

    The Big Batch Creamy Chicken and Mushroom One Pan Casserole Recipe:

    Bowl of creamy chicken and mushroom casserole with mashed potatoes, sprouts and green beans.

    Creamy Chicken and Mushroom One Pan Casserole

    By: Nicky Corbishley
    My big batch creamy chicken and mushroom one pan casserole! Cook this dish on the hob or in the oven. Make ahead and serve later!
    5 from 10 votes
    Rate this Recipe Print Recipe Pin Recipe
    Prep Time 15 mins
    Cook Time 50 mins
    Total Time 1 hr 5 mins
    Course Dinner
    Cuisine British
    Servings 10 servings
    Calories 267 kcal

    Ingredients
     

    • 5 chicken breasts - chopped into big chunks or strips
    • 9 tbsp plain/all purpose flour - all purpose flour
    • 1 tsp salt
    • 1 tsp black pepper
    • 2 tbsp vegetable oil
    • 2 tbsp unsalted butter
    • 3 brown onions - peeled and finely diced
    • 5 cloves garlic - peeled and minced
    • 1 tsp dried thyme
    • ½ tsp celery salt - optional
    • 1 litre chicken stock
    • 300 ml milk
    • 2 tbsp freshly squeezed lemon juice
    • 16-20 chestnut mushrooms - thickly sliced (white mushrooms or baby portabella are good too)
    • 240 ml double (heavy) cream
    • **Optional** 3tbsp cornflour/cornstarch - mixed with 5 tbsp cold water – to make a slurry
    • Small bunch parsley - chopped

    Serve with:

    • Mashed potato
    • Sprouts
    • Peas
    • Sweetcorn

    INSTRUCTIONS
     

    • Place the chicken in a bowl with 6 tablespoons of the flour plus ½ tsp each of salt and pepper. Toss to cover the chicken in the flour and seasoning.
    • Heat the oil over a high heat in a large frying pan (skillet) and add the chicken. Brown all over (it doesn't need to be cooked through at this point). Remove from the pan with a slotted spoon and put to one side.
    • Place the butter in the same frying pan and melt over a low-medium heat. Add the onions, garlic, thyme and celery salt and cook for 5 minutes until the onion softens. Sprinkle on the remaining 3 tbsp of flour and stir for a minute (it will be lumpy).
    • Pour in a splash of the stock and stir, using a whisk until combined. Continue to add in stock, a little at a time, whilst stirring, until all the stock is added and you have a smooth sauce with no lumps (the onions will still be in there though - so it will look a little lumpy because of that).
    • Add the milk and continue to stir over the heat until the sauce thickens, then add in the lemon juice.
    • Add the mushrooms, the chicken and the remaining ½ tsp of salt and pepper. Place a lid on the pan and simmer gently on the hob for 20 minutes.
    • **Alternatively you can transfer to a casserole dish at this point. Cover with foil and place in the oven at 175C/350F for 30 minutes**
    • Remove the lid and stir in the cream, then heat through for a further 5 minutes (place back in the oven if oven cooking).
    • Remove the lid and test for seasoning. Add a little more salt and pepper if needed.
    • If you'd like the sauce to be any thicker, then at this point you can stir in the cornflour slurry. Add a little splash at a time, whilst stirring, until you get the thickness you want.
    • Serve the casserole with vegetables (I like to serve mine with sprouts, peas and sweetcorn) and a sprinkling of parsley.

    Video

    ✎ Notes

    Make Ahead:

    You can make this dish ahead, then cool, cover and refrigerate for a day.
    Heat through thoroughly in the oven (covered) at 175C/350F for approx 20-25 minutes. Or heat through on the hob for 10-15 minutes on a medium heat until the chicken is hot all the way through.
    Add a splash of cream or milk if needed to loosen it up.
    .

    Freezing:

    Make the casserole, then cool, cover and freeze. Defrost thoroughly in the refrigerator and heat through thoroughly in the oven (covered) at 175C/350F for approx 20-25 minutes. Or heat through on the hob for 10-15 minutes on a medium heat until the chicken is hot all the way through.
    .

    Reducing the quantities:

    You can halve the quantities if necessary - no change to the cooking times. 
    .

    Can I make it in the slow cooker?

    I haven't tried this one in the slow cooker yet. If you try it, please let me know how it went. I'll update the notes when I test it using the slow cooker.
    .
    Nutritional Information is per Serving WITHOUT Serving suggestion of Mash Potato, Sprouts, Peas and Sweetcorn.

    Nutrition

    Calories: 267kcalCarbohydrates: 14gProtein: 15gFat: 16gSaturated Fat: 10gCholesterol: 78mgSodium: 484mgPotassium: 471mgFiber: 1gSugar: 3gVitamin A: 490IUVitamin C: 4.9mgCalcium: 71mgIron: 0.9mg
    Keywords autumn, Casserole, Family Meal, winter
    Tried this recipe?Mention @KitchenSanctuary or tag #KitchenSanctuary on Instagram!

    This post was first published in September 2017. Updated in February 2019 with new photos, process photos, tips and a recipe video.

    Equipment:

    In order to make this Crispy Orange Beef recipe you will need:

        • A good Kitchen knife. I have recently bought this Dalstrong one and love it.
        • Chopping Board
        • Measuring Jug
        • Juicer
        • Measuring Spoons
        • Garlic Press
        • A frying pan/skillet (try and get one with a lid)
        • Wooden or Silicon Coated Spoons.  We have just bought these and love them.
        • Potato Ricer HINT: Using a potato ricer makes the smoothest mash.

    Some of the links in this post may be affiliate links – which means if you buy the product I get a small commission (at no extra cost to you). If you do buy, then thank you! That’s what helps us to keep Kitchen Sanctuary running. The nutritional information provided is approximate and can vary depending on several factors. For more information please see our Terms & Conditions.

    Hi I’m Nicky

    I love to cook and I want to share with you my favourite, delicious family friendly recipes. I want to inspire you to create fantastic food for your family every day.

    Read More
    « Honey Mustard Trout with Quinoa, Roasted Vegetables and Feta
    Easy Chicken Lo Mein »

    Other Recipes You Might Like:

    Slow Cooked Steak Diane Casserole - a great make-ahead meal, just thing if you're feeding a crowd! Cook in the oven, on the hob or in the slow cooker.
    Slow Cooked Steak Diane Casserole
    A dish of creamy chicken pie with puff pastry sat on a blue and white striped cloth.
    Creamy Chicken Pot Pie
    This Chicken Noodle Soup with Turmeric is satisfying comfort food - filling enough for dinner!
    Chicken Noodle Soup with Turmeric
    This One Pot Rigatoni Alfredo with Chicken and Kale in a creamy, rich garlic and parmesan sauce is serious comfort food!
    One Pot Rigatoni Alfredo with Chicken and Kale

    Reader Interactions

    Comments

      Leave a Reply Cancel reply

      Your email address will not be published. Required fields are marked *

      Rate the recipe




      This site uses Akismet to reduce spam. Learn how your comment data is processed.

    1. Carole says

      April 13, 2022 at 8:57 am

      This looks and sounds delicious but can the cream be substituted with a healthier option ?

      Reply
    2. Anita says

      April 05, 2022 at 1:03 pm

      5 stars
      This recipe is one of my families favourites it is a lovely winter warmer. Easy to make and great with suggestions to.

      Reply
    3. Jess says

      November 10, 2021 at 1:29 am

      Did anyone add wine to this? I did. I'm not entirely convinced I should have. I will make it once more without one and see if I prefer the flavour which I suspect will be creamier or shroomier or both. Or maybe I won't add lemon if I add wine again, hard to tell. Something was tipping the scales.

      Reply
    4. Rowena says

      May 23, 2021 at 1:17 am

      5 stars
      A big hit even with the ones who "don't like mushrooms" Cooking it again this week 🙂

      Reply
    5. Nikky Simpson says

      April 16, 2021 at 7:57 am

      Really good recipe.
      We are dairy free
      Substitute good soy milk for dairy milk. Soy cooking cream and nuttlex or vegan butter for dairy butter.
      Added teaspoon djon mustard and chilli flakes.
      Really nice simple dinner.

      Reply
    6. Natalie says

      January 18, 2021 at 9:33 pm

      5 stars
      Absolutely delicious, chicken was so tender and the flavours were amazing.

      Reply
    7. Belinda says

      April 30, 2020 at 10:50 am

      5 stars
      Our new family fav- very flavoursome! I didn't have the Mash, sprouts and corn - but served with rice and steamed Broccoli ...so yum !!!

      Reply
    8. Han says

      September 24, 2019 at 7:47 pm

      5 stars
      Cooked this tonight. And absolute hit! Love your recipes. Keep it up! Thank you

      Reply
    9. Tonia says

      July 17, 2019 at 10:29 am

      5 stars
      This casserole is seriously the bomb! There's easily 8 adult serves here, I used 10 chicken thighs instead of 5 breast fillets.
      The flavour is incredible, my husband has asked it to become a monthly regular. To have 2 dinners from it, and 4 frozen serves, it's the best!

      Reply
    10. Marriane says

      February 26, 2019 at 10:05 am

      5 stars
      Made this for dinner along with the Mash potato, so good! Hubby and miss 2 yr old enjoyed it too:)

      Reply
    11. Jody says

      February 23, 2019 at 3:49 am

      5 stars
      I made this today after googling a creamy mushroom casserole recipe, and I love it! This is exactly how I wanted my casserole to turn out. Will definitely be adding this to my recipe list.

      I cooked up some rice and ended up with 10 meals I put in the freezer

      Reply
    12. David Young says

      December 23, 2018 at 7:25 pm

      Loved it. Really simple too.

      Reply
    13. Carl Lilley says

      December 22, 2018 at 7:30 pm

      5 stars
      Absolutely lovely and very tasty.
      I served it with plain white rice.
      It says that it serves 10, maybe six !

      Reply
    14. Katy says

      April 04, 2018 at 2:55 pm

      5 stars
      Made this for dinner last night, I served it with brown rice and put some spinach in with the chicken and mushroom. Delicious, definitely making this one again.

      Reply
    15. Annamarie Morgan says

      March 06, 2018 at 7:27 pm

      Just made the Chicken and Mushroom Casserole for 4. (There are three of us!!). Great meal! Clean plates all round!! Delicious!

      Reply

    Primary Sidebar

    Hi I’m Nicky

    I love to cook and I want to share with you my favourite, delicious family friendly recipes. I want to inspire you to create fantastic food for your family every day.

    Read More

    Recipes by category:

    • Popular Recipes
    • Asian
    • Curries
    • Quick Dinner Recipes
    • British Classic Recipes
    • BBQ
    • Roast Dinner
    • Street Food
    • Pasta
    Search For a Recipe

    Our Top Trending Recipes:

    • Crispy Sesame Chicken with a Sticky Asian Sauce
    • Honey Garlic Chicken
    • The Best Crispy Roast Potatoes
    • Cheesy Pasta Bake With Chicken And Bacon
    • Easy Chicken Curry
    • Easy Satay Sauce Recipe
    • Korean Fried Chicken
    • Creamy Tuna Pasta Bake

    FREE recipes direct to your inbox!

    Never miss a recipe and sign up for our completely FREE emails.

      Featured Recipes:

      • Chilli Con Carne
      • Traditional Lancashire Hotpot
      • Creamy Chicken Pot Pie
      • Egg Fried Rice
      • Korean Fried Chicken
      • Copycat Firecracker Chicken
      • Buffalo Chicken Pasta
      • Slow Cooker Spicy Chicken Curry
      As Featured On
      brit and co logo
      buzzfeed logo
      cheshire life logo
      country living logo
      beautiful home and life logo
      my fitness pal logo
      Neff logo
      The telegraph logo
      The Kitchn logo
      Vegetarian society logo

      Footer

      Nicky Corbishley is the recipe creator and photographer for Kitchen Sanctuary. Wife to Chris (chief techie and videographer) and mum to Lewis and Gracey. Read More…

      DMCA.com Protection Status

      Most Recent Recipes

      • Slow Cooker Beef Short Ribs with Rich Gravy
      • Simple Pesto Recipe
      • Salted Caramel Millionaires shortbread
      • Creamy Slow Cooked Pork Casserole
      • Sweet and Sour Vegetables

      Copyright © 2022 LoveFoodCreative Ltd - Privacy Policy - Cookie Policy - Terms & Conditions