Baked Cheesy Mushrooms Casserole

Baked Cheesy Mushrooms Casserole is a rich and hearty dish that combines tender mushrooms, a creamy sauce, and gooey melted cheese.

This casserole is perfect as a side dish or a vegetarian main course, making it a versatile option for weeknight dinners or special occasions.

Kitchen Equipment Needed

• Cutting board
• Knife
• Mixing bowls
• Baking dish (9×13-inch recommended)
• Skillet
• Wooden spoon or spatula
• Whisk

Ingredients

• 1 1/2 lbs mushrooms (button, cremini, or a mix), sliced
• 2 tbsp olive oil or butter
• 2 cloves garlic, minced
• 1/2 tsp dried thyme (or 1 tsp fresh)
• 1 cup heavy cream
• 1/2 cup sour cream
• 1/2 cup grated Parmesan cheese
• 1 cup shredded mozzarella cheese (divided)
• 1/4 cup breadcrumbs
• 1 tbsp fresh parsley, chopped (for garnish)
• Salt and pepper to taste

Directions

1. Preheat the Oven: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish and set aside.
2. Cook the Mushrooms: Heat olive oil or butter in a large skillet over medium heat. Add the mushrooms and cook for 6-8 minutes, stirring occasionally, until they release their moisture and start to brown. Add garlic and thyme, cooking for an additional 1 minute. Season with salt and pepper.
3. Make the Sauce: In a mixing bowl, whisk together the heavy cream, sour cream, and Parmesan cheese. Stir in half of the mozzarella cheese.
4. Assemble the Casserole: Transfer the cooked mushrooms to the prepared baking dish. Pour the creamy sauce over the mushrooms, spreading it evenly. Top with the remaining mozzarella cheese and breadcrumbs.
5. Bake: Bake in the preheated oven for 20-25 minutes, or until the top is golden and bubbly.
6. Garnish and Serve: Remove from the oven and let cool slightly. Sprinkle with fresh parsley before serving.

Prep Time

15 minutes

Cook Time

25 minutes

Total Time

40 minutes

Nutrition (Per Serving, based on 6 servings)

Calories: 280
Protein: 9g
Carbohydrates: 7g
Fat: 24g
Sugar: 2g

Expert Tips

• Mushroom Varieties: Use a mix of mushrooms like shiitake, portobello, or oyster for added flavor and texture.
• Breadcrumbs: For extra crunch, use panko breadcrumbs or toast them in butter before sprinkling on top.
• Cheese Options: Swap mozzarella with fontina or Gruyère for a different cheesy flavor.

FAQs

Can I make this dish ahead of time?
Yes, assemble the casserole and refrigerate for up to 24 hours. Bake just before serving.

Can I use low-fat ingredients?
Yes, but the dish may be less creamy. Opt for light sour cream or half-and-half instead of heavy cream.

What pairs well with this casserole?
Serve it with a side of crusty bread, roasted vegetables, or a fresh green salad.

Storing & Reheating

Refrigerator: Store in an airtight container for up to 3 days.

Freezer: Freeze the baked casserole for up to 2 months. Thaw overnight in the refrigerator before reheating.

Reheating: Warm in a 350°F oven for 10-15 minutes or in the microwave until heated through.

Substitutions & Variations

• Vegetarian Option: Ensure the Parmesan cheese is vegetarian, as some varieties contain animal rennet.
• Low-Carb Option: Skip the breadcrumbs for a keto-friendly version.
• Add Protein: Include cooked chicken, bacon bits, or sausage for a heartier dish.

Baked Cheesy Mushrooms Casserole

Baked Cheesy Mushrooms Casserole is a rich and hearty dish that combines tender mushrooms, a creamy sauce, and gooey melted cheese.

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Equipment

• - Cutting board
• - Knife
• Mixing bowls
• - Baking dish (9x13-inch recommended)
• - Skillet
• - Wooden spoon or spatula
• Whisk

Ingredients

  

• - 1 1/2 lbs mushrooms button, cremini, or a mix, sliced
• - 2 tbsp olive oil or butter
• - 2 cloves garlic minced
• - 1/2 tsp dried thyme or 1 tsp fresh
• - 1 cup heavy cream
• - 1/2 cup sour cream
• - 1/2 cup grated Parmesan cheese
• - 1 cup shredded mozzarella cheese divided
• - 1/4 cup breadcrumbs
• - 1 tbsp fresh parsley chopped (for garnish)
• - Salt and pepper to taste

Instructions

 

• **Preheat the Oven:** Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish and set aside.
• **Cook the Mushrooms:** Heat olive oil or butter in a large skillet over medium heat. Add the mushrooms and cook for 6-8 minutes, stirring occasionally, until they release their moisture and start to brown. Add garlic and thyme, cooking for an additional 1 minute. Season with salt and pepper.
• **Make the Sauce:** In a mixing bowl, whisk together the heavy cream, sour cream, and Parmesan cheese. Stir in half of the mozzarella cheese.
• **Assemble the Casserole:** Transfer the cooked mushrooms to the prepared baking dish. Pour the creamy sauce over the mushrooms, spreading it evenly. Top with the remaining mozzarella cheese and breadcrumbs.
• **Bake:** Bake in the preheated oven for 20-25 minutes, or until the top is golden and bubbly.
• **Garnish and Serve:** Remove from the oven and let cool slightly. Sprinkle with fresh parsley before serving.