5 from 1 votes

Unstuffed Mushroom Casserole

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This ultra-creamy unstuffed mushroom casserole tastes just like this well-loved stuffed mushroom appetizer recipe but in a delicious and easy casserole form!

The same creamy taste and texture of mushrooms, smothered with cream cheese and garlic, and then baked with the slight crunch of panko crumbs, make this side dish recipe restaurant-worthy. 

scoop of mushroom bake in a cast iron pan.

Why you will love Unstuffed Mushroom Casserole

Creamy: Even without cream of mushroom soup can, this dish is creamy and perfect not only as a side but as a meal. 

Great way to use mushrooms: I love mushrooms, but often I run out of ways to use them (only so many salads), and vegetable casseroles are an unexpected delight and make some of the best side dishes. Mix up the same old and use the mushrooms as a new recipe variation. 

 Ingredients

  • Mushrooms – We like to use quartered white button mushrooms. You could likely use other types of mushroom caps, but as of right now, I haven’t tested them to see if the cooking time is altered. However, I always encourage experimentation once you get the original recipe down. 
  • Oil – The oil is used for frying the mushrooms, and we suggest you use Canola Oil, Olive Oil (a more robust taste), or simple vegetable oil. 
  • Seasonings and herbs: Of course, this dish includes salt and black pepper, but additionally, minced garlic and fresh parsley are also part of the flavor profile.
  • Unstuffed ingredients: Just like original cream cheese mushrooms this casserole includes cream cheese, mozzarella cheese, and Parmesan Cheese.
  • Toppings: We love that little crunch so Panko bread crumbs and butter are the perfect combination to achieve the best topping.

How to make Stuffed Mushroom Casserole with Breadcrumb Topping

cast iron pan with mushroom casserole ingedients.
  1. Preheat oven to 350. Add oil and mushrooms to a large skillet or baking dish and season with salt and pepper.
  2. Heat over medium heat to medium-high heat, occasionally stirring, until mushrooms are soft and tender, about 8 minutes.
  3. Add garlic, 1/4th cup parmesan crumbs, and cream cheese and cook until cheese is melted and coating mushrooms.
  4. Remove from heat and stir in bread crumbs, mozzarella, and 1/2 cup Parmesan cheese. Mix the mushroom mixture well. 
stuffed mushroom casserole recipe on a plate.
  1. Combine the remaining 1/2 cup bread crumbs, parsley, and butter in a small bowl and mix well. Spoon on top of mushrooms in the casserole dish or cast iron pan. Bake for 25-30 minutes or until the top is golden brown. 
  2. Serve mushroom side dish immediately. 
full baked mushroom casserole in a cast iron pan.

Expert Tips

  • Super easy to change up, feel free to add a bit of cooked ground sausage (breakfast sausage or Italian sausage depending on your needs) to go from mushroom side dish to delicious dinner!
  • Garlic is something you measure with your heart so do not be ashamed to add more roasted garlic or minced garlic for the wildest garlicky mushrooms. 
  • Chicken makes a lovely pairing with baked vegetable casseroles, so adding some cooked chicken or shredded chicken to this dish can really dial it up. 
  • Other flavors that pair well are diced onions, cooked and crumbled bacon, green onions for topping, or fresh Thyme Sprigs. 
  • Mix it up over the next comfort meal or side dish needed at a holiday event and serve this mushroom casserole alongside other family favorites like broccoli cheese casserole and a corn casserole recipe.
eating cream cheese mushroom bake.

How to Serve Mushroom Bake

This mushroom bake goes well as a beautiful and unique side dish. It also serves fantastic on a bed of rice (like wild rice) or even as a topping to a creamy parmesan chicken or an asparagus chicken recipe

  • There are many ways to enjoy mushrooms, and Mummy Stuffed Mushrooms are perfect as a Halloween Appetizer
  • Need another quick and delicious side that can be eaten alone or spread on steak? Try quick skillet mushroom and onions
holiday mushroom side dish recipe on a plate.
5 from 1 votes

Unstuffed Mushroom Casserole


Prep Time 15 minutes
Cook Time 30 minutes
Mushroom casserole with white button mushrooms, cream cheese, Parmesan cheese, and panko bread topping is like a Stuffed Mushroom Appetizer but in an UNSTUFFED Casserole! An excellent choice for a hearty and delicious mushroom side dish.

Equipment

  • cast iron pan

Ingredients
 

  • pounds white button mushrooms
  • 3 tbsp Canola Oil
  • 1 tbsp minced garlic
  • 4 oz. cream cheese
  • ½ cup Mozzarella Cheese shredded
  • ¼ cup grated Parmesan Cheese
  • ½ cup Panko Breadcrumbs
  • salt and pepper

Topping

  • 1/4 cup grated Parmesan Cheese
  • ¼ cup fresh parsley leaves
  • 2 tbsp melted butter
  • ½ cup Panko Breadcrumbs

Instructions

  • Preheat oven to 350.
  • Add Canola oil and quartered white button mushrooms to a large cast iron skillet and season generously with salt and black pepper. Heat mushrooms over medium-high heat, stirring occasionally, until mushrooms are soft and tender, which takes about 8 minutes.
  • Add minced garlic and cream cheese and cook until cheese is melted and coating all mushrooms in the pan.
  • Remove from heat and stir in 1/2 cup bread crumbs, mozzarella, and 1/4 cup grated Parmesan cheese. Mix together well. 

Create Topping

  • In a small mixing bowl, combine the remaining 1/2 cup Panko bread crumbs, 1/4 cup grated Parmesan cheese, fresh parsley leaves, and melted butter, and mix well.
  • Spoon Parmesan Breading topping on top of mushrooms in the pan.
  • Bake mushroom casserole for 25-30 minutes or until top breading is golden brown. Serve side dish immediately. 

Notes

  • Super easy to change up, feel free to add a bit of cooked ground sausage to go from mushroom side dish to delicious dinner!
  • Garlic is something you measure with your heart so do not be ashamed to add more roasted garlic or minced garlic for the wildest garlicky mushrooms. 
  • Chicken makes a lovely pairing with baked vegetable casseroles, so adding some cooked chicken or shredded chicken to this dish can really dial it up. 
  • Other flavors that pair well are diced onions, cooked and crumbled bacon, green onions for topping, or fresh Thyme Sprigs. 
  • Serve on top of wild rice.

Nutrition

Serving: 0.5cup | Calories: 294kcal | Carbohydrates: 13g | Protein: 12g | Fat: 23g | Saturated Fat: 9g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 46mg | Sodium: 361mg | Potassium: 455mg | Fiber: 2g | Sugar: 4g | Vitamin A: 716IU | Vitamin C: 6mg | Calcium: 185mg | Iron: 1mg

Nutritional Disclaimer: The nutritional data provided here is auto-calculated and intended for your convenience only. As it’s generated via automation, its accuracy may be compromised. For precise nutritional insight, please compute the values utilizing the actual ingredients in your recipe through your chosen nutrition calculator or application.

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5 from 1 votes

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