Unstuffed Mushroom Casserole

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. 

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

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. 

5. 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. 
6. Serve mushroom side dish immediately. 

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.

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. 

Related Mushroom Side Dish Recipes

• 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. 

• You won’t believe how incredibly filling this Portobello Mushroom Side Dish is. Prefer Grilled Portobello Mushrooms? We have that too!
• It only takes 15 minutes to enjoy a massive helping of whole garlic mushrooms.