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.
Hi thanks for sharing your recipes ❤️ alll your recipes this is one of my favorites! What would be a good side dish to serve with this recipe? Thanks
Hi Adriiana, I think this goes well with mashed potatoes because the sauce also serves a gravy. Pair it with a simple veggie like asparagus or fresh cucumber tomato salad, or at least that’s what I love best! 🙂 With over 800 recipes now, we have so many options, it’s hard to choose just one 🙂
I dont like to eat mushrooms. Is there any other vegetable or something else I could use in place of mushrooms? Thanks
You could add frozen peas, or artichoke hearts. A vegetable that would not get mushy would probably work well.
Yum! If I want to use pork chops instead of chicken, do you think the baking time is the same??
Hi Kimberly, I haven’t tried that so I can’t really guess if it would work the same way. I’m assuming it would work, but I just haven’t tested it.
Is the “unsalted” butter a must or can you use salted? Also could this be made in the crockpot?.. additionally, I wonder if kale or broccoli could be added?
Hi Marletta, I think it would still work fine with salted butter :). I haven’t tried adding kale or broccoli, but I’m not sure the are idea since both cook fairly quickly and may be overcooked by the time the casserole is finished, unless you added them later in baking.
I made this the other night for my family and we all loved it! The chicken comes out fork tender and the flavors are great. I can’t wait to make it again.
I’m glad to hear the recipe is a HIT! Thank for sharing your fantastic review Jody!
Great recipe, everyone enjoyed it as written. Really appreciate a recipe for chicken that doesn’t involve a can of soup ,or anything else canned. Scratch recipes are the best.
I’m glad to hear the recipe is a HIT! Thanks for sharing your great review Rick!
Love this recipe. I made it tonight, and I made too much for just two people. Can this be frozen?
Hi Lynda, that should work great. One of my awesome readers, Terri, shared that it does work. She writes: “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. Frankly, I think Round Two tastes just as delicious, if not slightly better, than Round One! The one change I made: I took the foil off the last 15 minutes of cooking time so the top of everything got just a little crispy and golden. Delicious!”
So if I make this ahead of time.. can I just fut it in the fridge and then reheat the next day like above?Looking forward to trying it!
Hi Andrea, yes that would work 🙂
Amazingly good. Will be a repeat in our house!
I’m glad the recipe is a HIT! Thanks for sharing your great review Shelley!
I wonder if you could use dried mushrooms…………………
Hi Katrina, I haven’t tried that in this recipe but I imagine if you wanted to, you would want to soften and plump them up first. We usually only put dried mushrooms in soups – I haven’t experimented with them further 🙂
Love the recipe but lose the Microsoft adverts. Since Windows 10, the last thing I need to to see is anything from Microsoft. I managed to bypass their silly adverts and printed your recipe. Love it!
Hi Irene, we try to keep those not overwhelming since our reader experience is very important to us, but they are necessary in order for us to provide recipes free to readers 🙂
I can’t wait to try this!
I have a request, please. One my HUGE pet peeves is “salt and pepper to taste.” If you have never prepared a recipe, you don’t know what “to taste” is! aauugh! Please, advise what you added.
Hi Catherine, next time I make this, I will measure exactly what I use. Start with 1/2 tsp and add enough salt to make it taste like a delicious gravy :).
Wow. Thank you for this recipe. The sauce was amazing! I thought it was too much lemon juice but once I tried it out of the oven it was perfect.
My pleasure Tatyana! I’m glad you enjoy the recipe! Thanks for sharing 🙂
OMG this is so good I wished I’d made a bigger batch. Absolutely nothing left over. Will definitely be a dinner for guests next time.
I’m glad you love the recipe Wanda! Thanks for sharing your great review!
Very good! Pozdravjlaju Vas iz Slovakii!
Olga
Hi Olga!! Hello to you as well from Idaho, USA :). I just love hearing from readers from around the world! Its so amazing how food brings us all together 🙂
Made this for the family and it was delicious. Will definitely be adding this to the regular menu. Next time will add some chilli and a splash of worstishire sauce . Chicken was soooo tender and juicy.
I’m glad to hear the recipe made it in to the regular rotation! Thanks for sharing your excellent review Tracey!
Made this tonight. I served it with noodles and made a nice salad. The chicken was so tender. We did have to season it a bit more for our taste. This is a great casserole for the whole family. I especially liked the video which showed each step. Will definitely make again. Thanks Natasha
You’re welcome Maura! I’m glad to hear the whole family enjoys this recipe! Thanks for sharing your great review with other readers!
It was OK, but really lacked flavor.
Hi Amanda, make sure to add enough salt and pepper and don’t skip the lemon juice since those ingredients are what give this dish great flavor and not adding enough will cause it to be bland. Be sure you are adding salt and pepper to taste at the end of step 4.
I made 8 dishes of this yesterday for 60 people. Great dish served with fresh carrots, new potatoes and broccoli. Wonderful compliments. Glad I found this recipe. Have frozen some too and just defrosted and then heat through. Great.
I’m happy to hear how much everyone enjoys the recipe! Thanks for sharing your excellent review Viv! 🙂
Thank you for sharing this recipe!! So delicious! I doubled the sauce (cuz my family smothers everything with sauce) and added asparagus with the mushrooms, then served over spaghetti. It was such a hit!! Delicious!!
You’re welcome Elaina! I’m glad to hear how much everyone loves the recipe! Thanks for sharing your fantastic review! 😀
Made this today for the family and it was a big hit!!! They haven’t stopped raving about how incredible tender the chicken turned out. This recipe is going into mix for Sunday dinners!!! Thanks for posting something so simple and yet so tasty!!
You’re welcome Tricia! I’m glad to hear your family enjoys the recipe as much as mine does! Thanks for sharing your excellent review!