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Stuffed Mushroom Casserole

Stuffed Mushroom Casserole: A Comforting Twist on a Classic

Stuffed Mushroom Casserole is a deliciously comforting dish that brings all the flavors of classic stuffed mushrooms into an easy-to-make casserole form. Loaded with mushrooms, herbs, cheese, and breadcrumbs, this casserole is perfect for weeknight dinners or as a side dish for a special occasion. It’s rich, savory, and sure to please everyone at the table.

Table of Contents

  • Ingredients
  • Instructions
  • Cooking Notes
  • Variations
  • Frequently Asked Questions (FAQs)
  • Conclusion

Ingredients

  • 1 1/2 pounds cremini or white mushrooms (cleaned and sliced)
  • 3 tablespoons unsalted butter
  • 1 medium onion (chopped)
  • 3 cloves garlic (minced)
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 teaspoon dried thyme
  • 1/2 teaspoon dried oregano
  • 1 cup Italian-style breadcrumbs
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup heavy cream
  • 1/4 cup chopped fresh parsley (for garnish)

Instructions

Step 1: Preheat the Oven

  1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish or a similar-sized casserole dish with cooking spray or butter.

Step 2: Cook the Mushrooms

  1. In a large skillet over medium heat, melt the butter. Add the chopped onion and sauté for about 5 minutes, or until softened.
  2. Add the sliced mushrooms to the skillet and cook for another 8-10 minutes, or until the mushrooms have released their moisture and are golden brown.
  3. Stir in the minced garlic, salt, black pepper, thyme, and oregano. Cook for another 1-2 minutes, until fragrant.

Step 3: Assemble the Casserole

  1. Transfer the mushroom mixture to the prepared baking dish.
  2. In a bowl, mix together the Italian-style breadcrumbs, mozzarella cheese, and Parmesan cheese.
  3. Sprinkle the breadcrumb and cheese mixture evenly over the mushrooms.
  4. Drizzle the heavy cream over the top of the casserole.

Step 4: Bake

  1. Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and bubbly.

Step 5: Garnish and Serve

  1. Remove from the oven and let cool for 5 minutes.
  2. Garnish with chopped fresh parsley and serve warm as a side dish or main course.

Cooking Notes

  • Mushrooms: Cremini or white mushrooms work well for this casserole, but you can also use a mix of mushrooms, such as shiitake or portobello, for added depth of flavor.
  • Cheese: Mozzarella adds a melty, creamy texture, but you could also use Gruyere or fontina for a richer flavor.
  • Breadcrumbs: Italian-style breadcrumbs add extra flavor, but plain breadcrumbs will work just as well. You can also make your own by toasting and seasoning leftover bread.

Variations

Sausage-Stuffed Mushroom Casserole

  • Add 1/2 pound of cooked Italian sausage to the mushroom mixture before assembling the casserole for a heartier dish.

Spinach and Mushroom Casserole

  • Stir in 2 cups of fresh spinach leaves with the mushrooms until wilted for added greens and flavor.

Vegan Stuffed Mushroom Casserole

  • Use vegan butter, a non-dairy cream alternative, and dairy-free cheese to make this casserole vegan-friendly.

Frequently Asked Questions (FAQs)

Can I Make This Casserole Ahead of Time?

Yes! You can assemble the casserole, cover it tightly, and store it in the refrigerator for up to 24 hours before baking. When ready to bake, add a few extra minutes to the baking time if starting from cold.

How Should I Store Leftovers?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through, or in the microwave for a quicker option.

Can I Freeze Stuffed Mushroom Casserole?

Yes, you can freeze this casserole. Allow it to cool completely, then wrap it tightly in plastic wrap and aluminum foil. Freeze for up to 3 months. Thaw in the refrigerator overnight before reheating.

Stuffed Mushroom Casserole is a comforting, flavorful dish that combines all the best parts of stuffed mushrooms into one easy-to-make casserole. It’s rich, cheesy, and perfect for any occasion, whether as a side dish or a main course. Try different variations to suit your taste, and enjoy the delicious combination of mushrooms, herbs, and cheese.

Happy cooking, and enjoy every savory bite of this comforting casserole!