This mushroom rice casserole recipe is easy, delicious and a perfect side dish to serve at a dinner party. Watch everyone dollop big spoonfuls on their plates and then go back for seconds.

One of the things I love about this dish is the saltiness of the parmesan cheese combined with the earthiness of the mushrooms. But that’s not all, add flavorful brown rice and you have a much sought after side dish.
What makes this a stand out side to any meal and adds so much depth to the dish is the brown rice is cooked with chicken broth.
The other highlight is the quality of parmesan cheese you use. This particular cheese has only 3 ingredients: milk, salt and rennet.
Did you know that Parmigiano Reggiano is made by a collective of 400 farmers in the Parma region of Italy and that they and their ancestors have been making this Parmesan cheese for over eight centuries?
The cheese is produced exclusively in the provinces of Parma, Reggio Emilia, Modena and parts of the provinces of Mantua and Bologna. You know you are getting the real deal when you can see the pinholes on the rind. Words can’t describe how heavenly it is to unwrap these wedges of cheese and enjoy their fresh, pungent aroma.
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How to make mushroom rice casserole
Pre-step
Get your medium saucepan, casserole dish and cheese grater.
Step one
Gather the ingredients – parmesan cheese, onion, rice, chicken broth and mushrooms.
Step two
Add 2.5 cups chicken broth to a saucepan and heat it on medium high and bring to a boil.
Step three
Add 1 cup of rice and salt to the broth and once it comes to another boil, lower to a simmer and cover the pan. Cook for 50 minutes.
Step four
Heat a wok or large sauté pan on medium. Once the pan heats up, add olive oil.
Step five
Cut a large onion into medium chunks and slice the mushrooms into smallish slices.
Step six
Once the oil shimmers, add the onions and sauté for 8 minutes.
Step seven
Add the mushrooms and garlic and sauté them for 5 minutes.
Step eight
Preheat oven to 375 degrees Fahrenheit.
By now the rice is done.
Step nine
Add the rice to the wok or sauté pan and mix it with the vegetables until everything is incorporated.
Step ten
Shave off some slices of parmesan and grate about ¼ cup of the cheese.
Step eleven
Spoon half of the rice mixture into the casserole dish and sprinkle most of the grated cheese onto the rice.
Step twelve
Layer the rest of the rice over the cheese layer.
Step thirteen
Lay the slivers of parmesan on top of the rice and sprinkle the rest of the grated cheese on top.
Step fourteen
Pour ½ cup of chicken broth over the rice casserole, cover it and bake it for 40 minutes.
DING ⏲
All that is left is to serve it.
I plated it with a chicken enchilada with sour cream sauce and enjoyed a feast.
I hope you enjoyed this mushroom rice casserole recipe.
And as always, may all your dishes be delish!
If you’ve tried this or any other recipe on the blog, I’d love the hear what you thought about it in the comments below. I love hearing from you! You can also FOLLOW ME on FACEBOOK, TWITTER, INSTAGRAM and PINTEREST to see more of my delicious food and delightful cocktails!
Mushroom Rice Casserole | Cheesy Parmesan
Ingredients
- 1 cup rice rinsed
- 2.5 cups chicken broth
- 1 teaspoon salt
- 2 tablespoons olive oil
- 1 onion large, sliced into chunks
- 16 ounces mushrooms sliced
- 2 cloves garlic minced
- .50 cup freshly grated Parmigiano Reggiano cheese grated and 8 or so slivers of shaved parmesan
- .50 cup chicken broth
Instructions
- Pour 2 ½ cups chicken broth in a medium saucepan and bring to a boil on medium heat.2.5 cups chicken broth
- Add rice and salt, bring it back to a boil. Lower to a simmer and cook for 50 minutes.1 cup rice, 1 teaspoon salt
- While the rice is cooking, heat a sauté pan on medium and add olive oil.2 tablespoons olive oil
- Once the oil shimmers, add onions and sauté for 8 minutes.1 onion
- Add mushrooms and garlic and sauté for 5 minutes.16 ounces mushrooms, 2 cloves garlic
- Preheat oven to 375 F.
- Once the rice is done, spoon it into your sauté pan with the veggies and mix until combined.
- Spoon half of the rice mixture into a medium casserole dish and sprinkle most the grated parmesan cheese on top..50 cup freshly grated Parmigiano Reggiano cheese grated and 8 or so slivers of shaved parmesan
- Spoon the rest of the rice mixture on top and strategically lay the shaved Parmigiano Reggiano on top and sprinkle the rest of the parmesan cheese on top of that.50 cup freshly grated Parmigiano Reggiano cheese grated and 8 or so slivers of shaved parmesan
- Pour ½ cup of chicken broth on top.50 cup chicken broth
- Cover casserole dish and place in the oven and bake for 40 minutes
- Plate rice with a main course or eat it as a main course
- Smile
- Enjoy
Laura
AHAHAH, I want to dance with you around the kitchen. Can you imagine if we were neighbours, you with the Parmigiano Reggiano and me with the Riso Gallo ? We will be dancing all day !! I love this recipe YUM
Elaine
Thanks Laura!! 🙂 Happy Birthday, girl!
Joyce
My daughter is going to love this dish. She loves mushrooms with rice!
Elaine
Thanks Joyce!
Patty
So good! Nothing, and I mean NOTHING beats fresh Parmigiano! I bet that you’ll never again buy grated Parmigiano again! Every week or so, we drive to Italy to buy us a large piece of Parmigiano, we just can’t make without!
Elaine
I can see why Patty!! Thanks so much!
Beth
Yum Elaine! This looks so tasty!! I love fresh Parmigiano Reggiano! Especially if it’s nice and sharp! Haha, the chunky matches your thighs!!
Elaine
Truth Beth!!
Ali from Home & Plate
I make a risotto that is similar to this dish. I usually make rice in a pot but making a casserole makes a whole lotta sense when serving a crowd and you’d like a pretty pan to present this in. It looks delicious and especially with all that fresh parmesan cheese.
Elaine
Thanks so much Ali!!
Joyce
Mushrooms, onions and cheese is my ultimate FAVE!! This looks like such a flavourful comforting dish to enjoy in this cool weather. Perfect for my netflix time! 😀
Elaine
Woohoo Joyce!! Netflix for the win!
Traci @ The Kitchen Girl
I love anything with mushrooms and rice…and parm regg, for the win! Also love your step by step instructions. Thanks for sharing!
Elaine
Thanks Traci!! Everyone loves this dish!
Suzy
What a comforting casserole! Love it!
Elaine
Thanks Suzy!
Rebecca | Let's Eat Cake
Cheese is so my weakness and this casserole looks soooooo good!
Elaine
Rebecca!! Thanks so much!
Chris
This recipe is so darn delicious! Eating it at work all week this week and next. HAPPY. 🙂
Elaine
Woohoo Chris!!
Barb
Hi Elaine, what kind of rice do you use? 50 minutes seems like a long time to cook any rice other than wild rice.
Elaine
Barb, I use organic short grain brown rice and it comes out perfect every time. Someone from my family said that to me, as well, years ago, I tried cooking it less but it was not quite done. Thank you for your comment!