Creamy Chicken Casserole with mushrooms is a treasure of a recipe. It’s popularly called “Chicken Gloria” and it will win you over. This chicken bake is the perfect party dish and is a reader favorite.

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We love easy chicken casserole recipes like Chicken Tetrazzini and One-Pot Chicken and Rice. This Chicken and Mushroom Casserole does not disappoint!
Chicken Casserole Video
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Why we love this Chicken Bake
Crowd-Pleaser! Galina (my sister’s mama-in-law) is an amazing cook and this is her chicken and mushroom casserole. It is always a hit at parties and church potlucks. We make this often.
The chicken is incredibly tender – you will savor every morsel. I’ve seen sorta-somewhat similar recipes online referred to as Chicken Gloria, but I love that this one is made from scratch. It uses simple, non-canned ingredients (no cream of chicken soup needed).
Reheats Well – This chicken and mushroom casserole also re-heats really well (if you are lucky enough to have leftovers). You will likely add this recipe to your list of favorites.
Ingredients for Chicken Casserole
The ingredients for this recipe are surprisingly simple but they just work (see full printable ingredient list below):
- Chicken breast (or chicken tenders)
- Chicken broth
- Half and half*
- All-purpose flour (or use a GF substitute)
- Mushrooms
- Onion – it disappears into the sauce
- Garlic – don’t skip it
- Lemon juice – fresh is best
*What is half and half? Half and half is basically light cream. If you aren’t able to find “half and half” at your grocery store, you can substitute with equal parts of milk and heavy cream.

Can I Substitute the Mushrooms?
You can replace white mushrooms with portabello mushrooms. If you don’t like mushrooms, you can substitute with different vegetables, just pick sturdy veggies (avoid zucchini which turns mushy). Here are some great options to replace mushrooms:
- Frozen peas
- Asparagus
- Caramelized onions
- Artichoke hearts (well-drained)
How to Make Chicken Casserole
1. Sautee Chicken: Season chicken with salt and pepper and dredge in flour. Heat 3 Tbsp oil in a large skillet over medium/high heat. Once the oil is hot, add chicken and saute until golden, and transfer to a 13×9 casserole baking dish.

Pro Tip: Work in batches if needed so you don’t crowd your pan. Don’t worry about cooking the chicken through; it still needs to go in the oven
2. Sautee Mushrooms: Add 3 Tbsp oil along and saute mushrooms and onions until soft and golden. Add garlic and saute another 1-2 min. Spread mixture over the chicken.

3. Make the Sauce: In a medium saucepan (or in the same pan you’ve been using), melt 3 Tbsp butter. Whisk in 3 Tbsp flour until lightly golden (1-2 min). Add 1 1/2 cups chicken broth, 1 Tbsp lemon juice, 1/4 tsp pepper, and whisk until smooth. Add 1 cup half & half and bring to a simmer. Season with salt and pepper to taste.

4. Combine and Bake: Pour sauce over the chicken casserole. Cover with foil and bake chicken and mushroom casserole at 350˚F for 45 minutes. Garnish with parsley if desired.

Serve with
This chicken bakes in gravy so it is great served over Creamy Mashed Potatoes or Egg noodles (the same way we serve Beef Stroganoff). It’s also great paired with these fresh sides:
Common Questions
You can use trimmed chicken thighs or chicken tenders instead. If using chicken tenders, you don’t need to slice them.
Make and combine the chicken and mushrooms and refrigerate. The next day, make the sauce, assemble, and bake as directed.
Yes, you can reheat a pre-baked and chilled chicken casserole in the oven: cover with foil and bake at 325˚f for about 20 minutes or just until hot, or reheat on the stovetop over low heat just until hot, stirring occasionally.
Yes! You can freeze leftover chicken casserole. One of my readers shared her method: “It works! I took the pan out of the freezer, left it in the fridge most of the day, and reheated it in a 350* oven for about 40 minutes.”
One of our readers reported great results using a multi-cooker/ slow cooker: brown the chicken in the bottom of the slow cooker using the sautee function and remove. Sautée onions and mushrooms then return chicken to the pan. Combine sauce ingredients in a pan on the stove, pour it over the chicken, and slow-cook on low for five hours.

More Casserole Recipes:
Casseroles are perfect for parties and gatherings because they are easy to make and easy to scale up. These casserole recipes always get rave reviews:
- Lasagna – arguably the “ultimate” casserole
- Stuffed Shells – so easy with a 3 cheese filling
- Loaded Mashed Potato Casserole – creamy, cheesy, delicious!
- Green Bean Casserole – elegant and made from scratch
- Sweet Potato Casserole – with crunchy pecan topping
- Baked Tilapia Casserole – topped with veggies
Chicken Casserole Recipe (Chicken Gloria)

Ingredients
Ingredients for Chicken and Mushroom Casserole:
- 2 1/2 lbs chicken breasts , (4 to 5 large), cut into 1 -inch thick strips
- 1 1/2 tsp sea salt , plus more to taste
- 1/4 tsp black pepper, plus more to taste
- 1 cup all-purpose flour , to coat the chicken
- 6 Tbsp olive oil, divided
- 1 lb white mushrooms, thickly sliced
- 1 medium onion, finely diced
- 3 garlic cloves, minced
Ingredients for the Sauce:
- 3 Tbsp unsalted butter
- 3 Tbsp all-purpose flour, for the sauce
- 1 1/2 cups chicken broth
- 1 Tbsp lemon juice
- 1 cup half and half, or 1/2 cup milk + 1/2 cup heavy cream
Instructions
- Season chicken with salt and pepper and dredge both sides in flour. Heat 3 Tbsp oil in a large skillet over medium/high heat. Once oil is hot, add chicken and saute until golden. Work in batches if needed so you don't crowd your pan. Don't worry about cooking the chicken through; it still needs to go in the oven. Transfer chicken to a 13×9 casserole baking dish.
- Scrape of any debris from the skillet. Add 3 Tbsp oil along with sliced mushrooms and diced onions and saute until soft and golden. Add garlic and saute another 1-2 min. Spread mixture over the chicken.
- In a medium saucepan (or in the same pan you’ve been using), melt 3 Tbsp butter. Whisk in 3 Tbsp flour until lightly golden (1-2 min).
- Add 1 1/2 cups chicken broth, 1 Tbsp lemon juice, 1/4 tsp pepper, and whisk until smooth. Add 1 cup half & half and bring to a simmer. Season generously with salt and pepper to taste.
- Pour sauce over the chicken and mushrooms. Cover with foil and bake at 350˚F for 45 minutes. Serve warm or hot over mashed potatoes, pasta or rice.
I am totally with you on the non-canned ingredients! I don’t see why they would ever be used when it is so easy to create a recipe from scratch! No wonder this is one of the most popular recipes on your blog.
Hi Natasha. Love your recipes and blog. When you say “half and half” as in the Chicken and Mushroom Caserole what is it. Sounds so yummy. Thank you.
Hi Shirley, 🙂 Half and half is a milk product that is sold right next to the heavy cream in all grocery stores. You can substitute with using 1/2 milk and 1/2 whipping cream to make your own.
Yes! make this dish! Absolutely fantastic just as it is written and even better(if it’s possible) by easily tweaking it to suit your family’s tastes.
I like to sneak healthy veggies past my kids notice so I sauteed small broccoli florets and red and orange peppers (diced) with the mushrooms and onions.
Also, I add 1 tsp of finely chopped chili flakes to the sauteed mushrooms, extra garlic and I season the chicken before dredging with celery salt instead of plain salt and paprika instead of plain pepper.
I bake covered for 35 mns then bake uncovered for another 10 then I turn off the oven and let the casserole cool with the oven while I boil Spaghettini.
Serve Spaghettini covered in Casserole and top with finely diced green onions and grated Parmesan cheese.
p.s. best to let the casserole sit for a few minutes after removing from oven to allow the sauce to thicken
p.p.s. Sooooo delish
Mmmm your modifications sound so so good! Thank you for sharing that with me 🙂
This looks delicious and it is on the menu for tonight. I was wondering if anyone made this recipe with fresh sage and/or thyme and if so, how did it turn out? It does look great!
I haven’t tried but I think it’s worth testing. If you try, let me know how it works out 🙂
I did make this recipe the other night and added fresh sage to the recipe. It was fantastic! Your recipe is now in the rotation. Thank you so much.
You are very welcome Donn, I’m glad you like it 😀.
Great recipe! Doing it soon!! With quinoa as a side (boys LOVE quinoa) and veg. Tasty!!
Mmmm quinoa on the side sounds perfect!
Can I used jarred mushrooms? Or have you ever?
Hi Nikki, I haven’t tried with jarred mushrooms but the fresh ones add so much flavor to the dish that I probably would stick with fresh. I think it would work with jarred mushrooms but I can’t really say if it would taste as good.
Hi Natasha, made these today and it was amazing!! But when I lightly coated the chicken it was golden. But in the oven it tasted quite sludge from the flour. Any idea what could’ve happened? Thanks!
Did you mean to write “sludge?” Can you clarify a little more how it turned out? Since the chicken is baked in a gravy sauce, it softens and isn’t really golden or crispy in the end. Did it look different from what I have in the photos? If so, is it possible you might have omitted a step or ingredient?
OMG… I forgot to add half and half. 🙁
Oh no!!! I hate when that kind of thing happens 🙁
Could you add white wine to the sauce, and if you did when would you add
I haven’t tried adding white wine so I can’t really recommend it without trying it. I didn’t really think it needed it, but if you test it out, let me know how it goes!
White wine goes very well in this recipe as well as a generous among of grated gruyere cheese. However I do suggest that you use heavy whipping cream only if you are adding wine. Otherwise the sauce may curdle.
Excellent menu, made it last night. I did add half a can of cambells ckn soup as I wanted more sauce.I will recommend to family and friends.
Val.
U.K
Thank you for the great review and nice job improvising 😀.
I give this recipe 5 stars plus! I try different dishes all the time and had a bag of mushrooms didn’t know what to with. This a perfect solution didn’t have half and half so I used milk. Didn’t know if it’s supposed to be creamy after baking so I let it stay 15 minute more in the oven. The leftovers are even better served it to my roommate and she went crazy and asked how to make it. This Is
A perfect to bring anywhere. Thank you for sharing…..Patti
I’m so happy to hear that you loved it! Thanks so much for sharing that with me 🙂
I tried this tonight and followed your recipe. It was delicious,I served it with rice. I’ll make it for a neighbor hobo dinner party on Friday
Thanks for sharing.
Mary, thank you for writing in and for the nice review, I’m glad you liked it 😀.
Assuming I serve it with mashed potatoes, how many people will this casserole definitely serve? And if I were to double it, would I need to use two separate pans or would 1 be ok?
When doubling, you do need 2 separate pans unless you have 1 very large pan like a roasting pan. It would serve 8 with mashed potatoes on the side 🙂
I did make the everything but the cream sauce 1 day ahead and refrigerated it. Then the next day took the pan out of the refrigerator and brought to room temp. Made the cream sauce and poured it over and then baked. Came out great. I would say 1 recipe makes enough for about 5-6 people when served over mashed potatoes as the main dish. I doubled it and used 2 separate pans, which I recommend when doubling. If you use only 1 pan for doubling the recipe, it will take a lot longer than 45 minutes for the middle of the pan to begin to bubble in the oven. Everyone loved the recipe…served for my Mom’s Bday yesterday!
Thank you so much for sharing that!! I really appreciate it! Several people have asked about making it ahead like that. You’re awesome!! 🙂
Can I make this a day ahead of time, or does it need to be put together right before it goes in the oven?
I haven’t tried making it a day ahead but I think if I were to try it, I’d make the chicken and the sauce and keep them separate then combine and bake to finish it off.
Please let me know if you tried making it ahead and how it worked.
This is a delicious recipe. Could not get enough of the mushroom sauce. I served this with red cabbage and it was a perfect pairing. The creaminess of the sauce and tangyness of the red cabbage just worked. Eve after finishing I had to take a little extra sauce and dunk some bread into it. Just mouth watering!
Reading your comment makes me fiercely hungry!! 🙂 Thank you for the awesome review!
Oh my goodness! Is this delicious! I followed the recipe very close, just tossed in some frozen peas along with everything. I thought they added a nice touch. Anyhow, stopped after a “small” second helping. I wanted to eat a LOT more right then and there, but I controlled myself. This will be a multiple repeat!
That is awesome!! Thank you so much for sharing your amazing review 🙂
Would this work adding tarragon?
Hi Jane, I haven’t tried adding it so I an’t really say if it would work well. It has great flavor without it though. If you test the tarragon, let me know how it goes 🙂
This is so delicious! I made it and the whole family gobbled it up!! Even my fussy eater! Thanks for the recipe.xx
I’m so happy you all loved the recipe! Thank you for the fantastic review!
I made this dish and OH MY GOODNESS, it was amazing. I paired it with angel hair pasta. I did feel like it lacked a bit of a punch for me so I added artichoke hearts, it was perfect. Reheats perfectly as well. I am making this for my friendsgiving dinner tonight 🙂 Thank You for an amazing recipe.
Thank you so much for the awesome review! I love the idea of serving it over angel hair pasta. That is my favorite kind of pasta! What kind of artichoke did you use? Marinated or plain?
Hi (: I buy the marinated jarred one from Costco , I believe they come in 2 , it might be 3.. I drain the oil off the artichoke in a drainer as I prepare this meal , and then add it on top of my own personal plate . (most of my family members/kiddos eat this up just as is) .. Let me know if you try it, I would love to know if you enjoys it (:
Thanks so much for sharing that with me! 🙂
Can you use gluten free flour in this recipe. If yes, what GF flour do you recommend?
I don’t have much experience with GF flour so I can’t really name a specific brand. I would say if you try it, use your favorite baking brand of GF flour. Sorry I can’t be more helpful.
I made this with sorghum flour, but white or brown rice flour would be fine too.
Thanks Brenda! 🙂