Stuffed Mushroom Casserole Recipe
This comforting casserole combines savory sausage, tender mushrooms, and creamy cheese, topped with a crispy breadcrumb crust. Perfect for a cozy family dinner or a special occasion!
Ingredients
- 2 tablespoons olive oil, divided
- 1 1/2 pounds bulk hot Italian sausage
- 1 1/2 pounds cremini mushrooms, trimmed and quartered
- 1 1/2 tablespoons finely chopped garlic
- 1 (8 ounce) package cream cheese, softened
- 1 (5.2 ounce) package soft Gournay cheese product with basil & chives (such as Boursin)
- 3 ounces pre-shredded low-moisture part-skim mozzarella cheese
- 3 ounces Parmesan cheese, finely shredded, divided
- Cooking spray
- 1 cup panko (Japanese-style breadcrumbs)
- 2 tablespoons unsalted butter, melted
- 2 tablespoons chopped fresh flat-leaf parsley
Directions
- Preheat the oven: Set your oven to 350F (175C) and gather all your ingredients.
- Cook the sausage: Heat 1 tablespoon of olive oil in a large nonstick skillet over medium-high heat. Add the sausage and cook, stirring often, until browned and crumbled, about 8 minutes. Using a slotted spoon, transfer the cooked sausage to a large bowl, leaving the drippings in the skillet.
- Cook the mushrooms: Return the skillet to medium-high heat. Add the remaining tablespoon of olive oil to the drippings. Add the mushrooms and cook, stirring occasionally, until softened and browned, about 8 to 10 minutes. The mushrooms should release most of their liquid.
- Add garlic: Stir in the garlic and cook, stirring constantly, until fragrant, about 30 seconds.
- Mix in the cheeses: Add the cream cheese and Gournay cheese to the skillet, stirring constantly until the cheeses melt and coat the mushrooms evenly, about 2 minutes.
- Combine sausage and mushroom mixture: Transfer the mushroom mixture to the bowl with sausage. Stir in the mozzarella and 1/2 cup of the Parmesan cheese until evenly combined.
- Prepare the baking dish: Coat a 13x9-inch baking dish with cooking spray. Spoon the sausage and mushroom mixture into an even layer in the prepared dish.
- Make the breadcrumb topping: In a small bowl, combine the panko, melted butter, and the remaining 1/4 cup of Parmesan cheese. Stir well and then sprinkle evenly over the top of the mushroom mixture.
- Bake: Place the dish in the preheated oven and bake until the topping is golden brown, about 25 minutes.
- Garnish and serve: Once baked, sprinkle with fresh parsley. Serve hot and enjoy!
Nutrition Facts (per serving)
- Calories: 881
- Total Fat: 68g (88% Daily Value)
- Saturated Fat: 31g (155% Daily Value)
- Cholesterol: 158mg (53% Daily Value)
- Sodium: 1526mg (66% Daily Value)
- Total Carbohydrate: 30g (11% Daily Value)
- Dietary Fiber: 2g (6% Daily Value)
- Total Sugars: 8g
- Protein: 38g (77% Daily Value)
- Vitamin C: 2mg (3% Daily Value)
- Calcium: 364mg (28% Daily Value)
- Iron: 3mg (18% Daily Value)
- Potassium: 1064mg (23% Daily Value)

Stuffed Mushroom Casserole is a delightful twist on the classic stuffed mushrooms appetizer, transformed into a hearty casserole. This comforting dish combines earthy mushrooms with rich Italian sausage, garlic, and a melty blend of cheeses. It's a popular choice for family gatherings, potlucks, or just a delicious weeknight dinner. But where did this dish come from, and how does it differ from other casseroles? Let's explore the history, regional influences, and interesting facts surrounding this scrumptious dish.
History and Origin of Stuffed Mushrooms
The origins of stuffed mushrooms can be traced back to Italian-American cuisine, which adapted many traditional Italian recipes to suit the American palate. The concept of stuffing mushrooms likely emerged in Italy, where mushrooms have been a staple of the Mediterranean diet for centuries. However, stuffed mushrooms as we know them todayoften filled with breadcrumbs, cheese, and meatsgained popularity in the United States during the mid-20th century, especially at upscale restaurants and parties.
Regional Variations
While stuffed mushrooms are enjoyed in many countries, the casserole version of this dish is a distinctly American innovation. In certain regions of the U.S., particularly in the Midwest and the South, casseroles are a common comfort food, often served at family dinners and gatherings. The stuffed mushroom casserole takes the concept of traditional stuffed mushrooms but makes it easier to serve in larger portions, allowing for more versatility in preparation and presentation. The use of ingredients like Italian sausage and Gournay cheese adds regional flair, especially in areas with a strong Italian-American influence.
What Sets It Apart?
Stuffed Mushroom Casserole stands out from other similar dishes due to its unique combination of ingredients and its casserole format. While traditional stuffed mushrooms are bite-sized and served as appetizers, this casserole transforms the flavors of the stuffed mushrooms into a larger, shareable dish. The rich cream cheese and Gournay cheese give it a creamy texture, while the combination of mozzarella and Parmesan adds a cheesy, savory depth. Additionally, the crispy topping of panko breadcrumbs and melted butter contrasts perfectly with the creamy mushroom filling, offering a satisfying crunch. Compared to other casseroles, such as cheesy potato or chicken casseroles, Stuffed Mushroom Casserole is lighter yet still indulgent, making it a perfect balance of rich and comforting.
Where Is Stuffed Mushroom Casserole Typically Served?
Stuffed Mushroom Casserole is often served as a main dish for dinner or as a side dish during holiday meals, potlucks, and family gatherings. Its versatility also makes it a fantastic appetizer for parties and festive occasions. The dish's hearty yet savory profile makes it particularly popular during fall and winter months when comforting meals are in high demand. It pairs well with roasted meats, salads, or as a standalone vegetarian option for guests who prefer non-meat dishes.
Interesting Facts About Stuffed Mushroom Casserole
- Healthier Option: Despite its rich appearance, the casserole can be made healthier by substituting lean meats like turkey sausage and using reduced-fat cheese. This makes it a more guilt-free option while still retaining the delicious flavor.
- Freezer-Friendly: One of the best things about this casserole is that it can be made in advance and frozen for later use. Simply prepare the casserole and store it in the freezer. When you're ready, bake it straight from the freezer, and you'll have a delicious meal in no time!
- Perfect for Leftovers: If you have leftovers, don't worry! The casserole reheats beautifully and is perfect for lunch the next day. Simply warm it up in the microwave or oven and enjoy the same cheesy goodness.
Stuffed Mushroom Casserole is a dish that embodies the creativity and comfort of American cuisine while paying homage to its Italian roots. Whether you're hosting a dinner party or looking for a comforting meal to enjoy at home, this casserole is sure to please.
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FAQ about Stuffed Mushroom Casserole Recipe
Comments
TwistyPho8373
10/06/2025 01:52:54 PM
Absolutely the best ever casserole...but...since we don't eat sausage very often, or anything very spicy, I made this dish using organic ground beef and used the whipped cream cheese...what a real treat this casserole really is!...I have made it twice, now, and it is in the oven as I write this great review...Thank you Julia Levy for sharing this awesome casserole.
WobblyLemon1362
02/07/2025 08:19:33 PM
Too rich. I could only eat a small portion
QuirkyNaan4403
01/14/2025 09:39:56 PM
Had a lot left over so I froze it, hope it’ll be good after it’s reheated
Jack Wright
03/09/2024 07:28:15 PM
This turned out perfect.