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.
Ingredients
Scale
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
Instructions
- 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.
- 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.
- Arrange mushrooms in dish. Spread the seasoned mushroom mixture evenly across the bottom of the prepared baking dish for uniform cooking.
- 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.
- Pour heavy cream. Carefully pour the heavy cream uniformly over the entire dish, which will create a rich and creamy sauce as it bakes.
- 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.
- 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.
- 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.
- 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
