Stuffed Mushroom Casserole

5.0
(2)
2 Reviews
1 Photo

Stuffed mushroom casserole is your favorite party appetizer but in casserole form! The mushrooms are cooked perfectly and seasoned nicely with garlic, Italian sausage, and Boursin. A cheesy, creamy sensation.

By
Julia Levy
Julia Levy
Julia Levy
Julia Levy is an experienced cook with a demonstrated history of working in the publishing industry. She is skilled in catering, food & beverage, event planning, and menu development. She tests and develops recipes in the DotDash Meredith Test Kitchen for Southern Living.
Allrecipes' editorial guidelines
Published on March 5, 2024
Stuffed mushroom casserole with a serving removed.
Prep Time:
20 mins
Cook Time:
50 mins
Total Time:
1 hr 10 mins
Servings:
6 (serving size: about 1 1/3 cups)
Jump to Nutrition Facts

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

  1. Preheat oven to 350 degrees F (175 degrees C). Gather all ingredients.

    All ingredients to make stuffed mushroom casserole gathered on a kitchen counter.

    Dotdash Meredith Food Studios

  2. Heat 1 tablespoon of the oil in a large nonstick skillet over medium-high. Add sausage; cook, stirring often, until browned and crumbled, about 8 minutes.

    sausage browning in a large pot.

    Dotdash Meredith Food Studios

  3. Using a slotted spoon, transfer cooked sausage to a large bowl, leaving drippings in skillet.

    sausage transferred to a large bowl using a slotted spoon.

    Dotdash Meredith Food Studios

  4. Return skillet to medium-high. Add remaining 1 tablespoon oil to drippings. Add mushrooms; cook, stirring occasionally, until mushrooms are softened, browned, and have released most of their liquid, 8 to 10 minutes.

    Mushrooms added to sausage oil in a large pot.

    Dotdash Meredith Food Studios

  5. Add garlic; cook, stirring constantly, until fragrant, about 30 seconds. Stir in cream cheese and Gournay cheese; cook, stirring constantly, until cheese is melted and evenly coating mushrooms, about 2 minutes.

    garlic, cream cheese, and Gournay cheese added to mushroom mixture and cooked until melted.

    Dotdash Meredith Food Studios

  6. Transfer mushroom mixture to bowl with sausage, and stir in mozzarella and 1/2 cup of the Parmesan cheese until evenly combined.

    Mushroom mixture added to sausage and mixed until combine in a large glass bowl.

    Dotdash Meredith Food Studios

  7. Spoon into an even layer in a 13- x 9-inch baking dish coated with cooking spray.

    meat and mushroom mixture transferred into a prepared baking dish.

    Dotdash Meredith Food Studios

  8. Stir together panko, melted butter, and remaining 1/4 cup Parmesan cheese in a small bowl. Sprinkle evenly over top of mushroom mixture.

    mushroom mixture topped with breadcrumbs, ready for the oven.

    Dotdash Meredith Food Studios

  9. Bake in preheated oven until topping is golden, about 25 minutes. Sprinkle with parsley. Serve hot.

    Stuffed mushroom casserole baked until golden-brown and topped with fresh chopped parsley.

    Dotdash Meredith Food Studios

Nutrition Facts (per serving)

881 Calories
68g Fat
30g Carbs
38g Protein
Nutrition Facts
Servings Per Recipe 6
Calories 881
% Daily Value *
Total Fat 68g 88%
Saturated Fat 31g 155%
Cholesterol 158mg 53%
Sodium 1526mg 66%
Total Carbohydrate 30g 11%
Dietary Fiber 2g 6%
Total Sugars 8g
Protein 38g 77%
Vitamin C 2mg 3%
Calcium 364mg 28%
Iron 3mg 18%
Potassium 1064mg 23%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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