Baked Cheesy Mushrooms Casserole Recipe

Introduction

This Baked Cheesy Mushrooms Casserole is a comforting and savory dish perfect for mushroom lovers. Creamy, cheesy, and topped with a crispy breadcrumb crust, it makes a satisfying side or vegetarian main.

Ingredients

• 1 lb button mushrooms, sliced
• 1 tbsp olive oil
• 1 tsp garlic powder
• 1 tsp dried thyme
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1 cup shredded cheddar cheese
• 1/2 cup grated Parmesan cheese
• 1 cup heavy cream
• 2 tbsp unsalted butter, melted
• 1/2 cup breadcrumbs (optional)
• Fresh parsley, chopped (for garnish)

Instructions

1. Step 1: Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish.
2. Step 2: In a bowl, toss the sliced mushrooms with olive oil, garlic powder, thyme, salt, and pepper until well coated.
3. Step 3: Spread the mushroom mixture evenly in the prepared baking dish.
4. Step 4: Sprinkle the shredded cheddar and grated Parmesan cheese over the mushrooms.
5. Step 5: Pour the heavy cream evenly over the entire dish.
6. Step 6: In a separate bowl, mix the melted butter with breadcrumbs until combined. Sprinkle this mixture evenly over the top of the casserole.
7. Step 7: Bake in the oven for 25–30 minutes, until the top is golden brown and the sauce is bubbling.
8. Step 8: Optionally, broil for 2–3 minutes to achieve an extra crispy topping. Watch carefully to avoid burning.
9. Step 9: Let the casserole rest for a few minutes before garnishing with chopped parsley and serving.

Tips & Variations

• Use panko breadcrumbs for a lighter, crunchier topping.
• Swap cheddar for mozzarella for a milder, stretchier cheese layer.
• Add chopped onions or shallots for extra sweetness and depth.
• For a lighter version, substitute half the heavy cream with milk or a plant-based alternative.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven at 350°F (175°C) until warmed through to preserve the texture of the topping.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use other types of mushrooms?

Yes, you can use cremini, portobello, or a mix of wild mushrooms for different flavors and textures.

Is this dish suitable for freezing?

It can be frozen after baking. Cool completely, then store in a freezer-safe container for up to 2 months. Thaw overnight in the fridge before reheating in the oven.

Baked Cheesy Mushrooms Casserole Recipe

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★★★★★

4.5 from 140 reviews

• Author: Simon
• Total Time: 45 minutes
• Yield: 6 servings 1x
• Diet: Vegetarian

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Description

This Baked Cheesy Mushrooms Casserole is a creamy, savory dish perfect for mushroom lovers. Sliced button mushrooms are seasoned and baked in a rich mixture of cheddar, Parmesan cheeses, and heavy cream, then topped with a buttery breadcrumb crust. The result is a golden, bubbly, and cheesy casserole that makes a comforting side or main dish.

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Ingredients

Scale 1x2x3x

Mushrooms and Seasonings

• 1 lb button mushrooms, sliced
• 1 tbsp olive oil
• 1 tsp garlic powder
• 1 tsp dried thyme
• 1/2 tsp salt
• 1/4 tsp black pepper

Cheese and Cream Mixture

• 1 cup shredded cheddar cheese
• 1/2 cup grated Parmesan cheese
• 1 cup heavy cream

Topping

• 2 tbsp unsalted butter, melted
• 1/2 cup breadcrumbs (optional)

Garnish

• Fresh parsley, chopped, for garnish

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Instructions

1. Preheat and prepare dish. Preheat your oven to 375°F (190°C) and lightly grease a 9×13-inch baking dish to prevent sticking and for easy cleanup.
2. Season the mushrooms. In a mixing bowl, toss the sliced mushrooms with olive oil, garlic powder, dried thyme, salt, and black pepper until they are evenly coated with the seasoning and oil.
3. Arrange mushrooms in dish. Spread the seasoned mushroom mixture evenly across the bottom of the prepared baking dish for uniform cooking.
4. Add cheese layers. Sprinkle the shredded cheddar cheese evenly over the mushrooms, then follow by sprinkling the grated Parmesan cheese on top to add depth of flavor.
5. Pour heavy cream. Carefully pour the heavy cream uniformly over the entire dish, which will create a rich and creamy sauce as it bakes.
6. Prepare breadcrumb topping. In a small bowl, stir together the melted unsalted butter and breadcrumbs until combined, then sprinkle this mixture evenly over the top of the casserole for a crispy, golden crust.
7. Bake the casserole. Place the baking dish in the preheated oven and bake for 25-30 minutes, or until the topping is golden brown and the sauce is bubbling around the edges.
8. Optional broil for crispiness. For an extra crispy topping, switch your oven to broil and broil the casserole for an additional 2-3 minutes, watching carefully to avoid burning.
9. Rest and garnish. Remove the casserole from the oven and let it rest for a few minutes to set. Garnish with chopped fresh parsley before serving for a fresh, colorful finish.

Notes

• You can substitute heavy cream with half-and-half for a lighter version, though the sauce will be less rich.
• Breadcrumb topping is optional but adds a delightful crunch to the dish.
• For a vegetarian option, make sure to use vegetarian-friendly Parmesan cheese.
• This casserole pairs well as a side dish with roasted meats or as a hearty vegetarian main with a side salad.
• Leftovers can be refrigerated in an airtight container for up to 3 days and reheated in the oven for best texture.

• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Category: Casserole
• Method: Baking
• Cuisine: American

Keywords: cheesy mushrooms casserole, baked mushroom casserole, mushroom side dish, creamy mushroom bake, vegetarian casserole