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    Home » Recipes » Sides

    Baked Mushroom Casserole Recipe

    Modified: Feb 5, 2022 · Published: Feb 12, 2019 by Sharon Rigsby · 1 Comment

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    Baked Mushroom Casserole Pinterest pin

    Baked Mushroom Casserole is a delicious and impressive mushroom side dish with a blend of shitake, cremini, and baby portabella mushrooms, baked with butter, parsley, and lemony goodness. 

    Baked Mushroom Casserole in a white baking dish garnished with parsley.

    This hearty mushroom casserole recipe checks all of the boxes, quick, easy, and delicious, and it pairs beautifully with beef, pork or chicken. Baked Mushroom Casserole would also make a wonderful vegetarian main course for dinner. 

    Easy Mushroom Recipes for Dinner:

    My family loves mushrooms, and I am always on the lookout for recipes that include them. Here are a few of our favorites: Filet Mignon with Mushroom Red Wine Sauce, Creamy Skillet Chicken with Bacon and Mushrooms, Bacon and Mushroom Stuffed Pork Tenderloin, and Skillet Chicken with Mushroom Sauce. 

    Also, if you like mushrooms, I know you will like my easy mushroom pasta recipe, Easy Chicken Mushroom Marsala Pasta. This is a great make-ahead main course for a fancy schmancy dinner party, or a weeknight family dinner, and bless its little heart, it also freezes well. 

    Mushrooms aren’t just for dinner Easy Mushroom and Broccoli Frittata is a delicious and healthy way to start the day. This yummy frittata is a simple recipe and perfect for breakfast or brunch. 

    Of course, while we are on the subject of mushroom recipes, don’t forget mushroom appetizers. Stuffed mushrooms are a party favorite, and my Easy Artichoke Stuffed Mushrooms are always the first to be devoured.

    How to Wash and Store Mushrooms:

    If you are like me, you may be wondering how to clean your mushrooms. The best way to clean them is to simply wipe them off with a damp paper towel. Do not submerge them in water, or they will become soggy. If they are really dirty, rinse them quickly under running water, and then immediately dry them with a paper towel. 

    Store your prepackaged mushrooms in the refrigerator, and if they are loose, either store them in a paper bag or wrap them in a damp paper towel. Either way, your mushrooms should keep in the refrigerator for up to three days. 

    How to make Baked Mushroom Casserole:

    Preheat your broiler to high and toast the French bread slices until they are lightly browned on both sides. Reduce the oven heat to 375 degrees F. 

    A loaf of french bread sliced to make Baked Mushroom Casserole.

    Add the room temperature butter, parsley, lemon juice, salt, and pepper to a small bowl and mix well. Take up to half of the butter mixture and liberally spread on one side of the toast slices. Set the remaining butter mixture aside. 

    Cover the bottom of a small shallow baking dish or gratin dish with a single layer of buttered slices of toast. 

    French bread slices in the bottom of a gratin dish covered with butter.

    Top the toast with the mushroom slices and spread out evenly. 

    Melt the remaining butter mixture in the microwave or on the stove and drizzle over the mushrooms. Drizzle the heavy cream evenly over the mushrooms.

    A mixture of sliced mushrooms in a gratin dish to make Baked Mushroom Casserole.

    Cover the dish tightly with foil or a lid and bake for approximately 30 minutes or until the mushrooms are done.  

    Optional, garnish with additional chopped parsley. 

    Serve hot! 

    Baked Mushroom Casserole garnished with parsley in a white baking dish.

    Sharon’s Expert Tips:

    • You can use pretty much any variety of mushrooms in this casserole. I was lucky to find a mixture of prepackaged mushrooms that were already sliced at the store, but you can use just one type if that’s what you have on hand. White button mushrooms, which are the most common, would work well. Creminis, which are just baby portabellas, would also be delicious. 
    • Depending on how large your loaf of French bread is, and the size of your baking dish, you might need more than four slices. Don’t jam them in, they should just fit comfortably in one layer. 
    • Sliced sourdough bread can be substituted for the French bread. 
    • You can substitute dried parsley flakes for the fresh parsley in this recipe. Because dried herbs are stronger than fresh only use one teaspoon of dried parsley.    

    If you make this recipe:

    Please rate it and let me know what you think in the comments section.  Also, take a picture, post it on Instagram, tag @gritsandpinecones, and hashtag it #gritsandpinecones.

    I love hearing from you and seeing what you have made!

     

    Also, follow me on Pinterest, Facebook, and Instagram.

    Thank you so much for visiting Grits and Pinecones! Come back soon! 

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    Baked Mushroom Casserole in a white baking dish garnished with parsley.

    Baked Mushroom Casserole Recipe

    Sharon Rigsby
    This hearty mushroom casserole recipe checks all of the boxes, quick, easy, and delicious, and it pairs beautifully with beef, pork or chicken. Baked Mushroom Casserole would also make a wonderful vegetarian main course for dinner.
    4.34 from 3 votes
    Print Recipe Pin Recipe
    Prevent your screen from going dark
    Prep Time 10 minutes mins
    Cook Time 30 minutes mins
    Total Time 40 minutes mins
    Course Side Dish
    Cuisine American
    Servings 4 servings
    Calories 410 kcal

    Ingredients
      

    • 6 tablespoon unsalted butter room temperature
    • 1 tablespoon chopped parsley fresh
    • 2 teaspoon lemon juice fresh
    • ½ teaspoon kosher salt
    • ⅛ teaspoon ground black pepper
    • 4 slices French bread ½-inch-thick (may need more to cover the bottom of baking dish)
    • 12 oz mixed mushrooms sliced
    • ½ cup heavy cream

    Instructions
     

    • Preheat your broiler to high and toast the French bread slices until they are lightly browned on both sides. Reduce the oven heat to 375 degrees F.
    • Add the room temperature butter, parsley, lemon juice, salt, and pepper to a small bowl and mix well. Take up to half of the butter mixture and liberally spread on one side of the toast slices. Set the remaining butter mixture aside.
    • Cover the bottom of a small shallow baking dish or gratin dish with a single layer of buttered slices of toast.
    • Top the toast with the mushroom slices and spread out evenly.
    • Melt the remaining butter mixture in the microwave or on the stove and drizzle over the mushrooms. Drizzle the heavy cream evenly over the mushrooms.
    • Cover the dish tightly with foil or a lid and bake for approximately 30 minutes or until the mushrooms are done.
    • Optional, garnish with additional chopped parsley.
    • Serve hot!

    Notes

    Sharon's Expert Tips:
    • You can use pretty much any variety of mushrooms in this casserole. I was lucky to find a mixture of prepackaged mushrooms that were already sliced at the store, but you can use just one type if that's what you have on hand. White button mushrooms, which are the most common, would work well. Creminis, which are just baby portabellas, would also be delicious.
    • Depending on how large your loaf of French bread is, and the size of your baking dish, you might need more than four slices. Don't jam them in, they should just fit comfortably in one layer.
    • Sliced sourdough bread can be substituted for the French bread.
    • You can substitute dried parsley flakes for the fresh parsley in this recipe. Because dried herbs are stronger than fresh only use one teaspoon of dried parsley.
    Nutrition information can vary for a recipe based on factors such as precision of measurements, brands, ingredient freshness, or the source of nutrition data. We strive to keep the information as accurate as possible but make no warranties regarding its accuracy. We encourage readers to make their calculations based on the actual ingredients used in your recipe, using your preferred nutrition calculator, especially those with dietetic allergies and food-related diagnoses.

    Nutrition

    Calories: 410kcalCarbohydrates: 30gProtein: 8gFat: 29gSaturated Fat: 18gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gCholesterol: 86mgSodium: 568mgPotassium: 352mgFiber: 3gSugar: 2gVitamin A: 1050IUVitamin C: 4.1mgCalcium: 60mgIron: 1.8mg
    Tried this recipe? Tag me today! Mention @gritspinecones or tag #gritspinecones!

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      4.34 from 3 votes (3 ratings without comment)

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    1. Gail Rappa

      February 21, 2019 at 10:59 pm

      Sharon, the Mushroom Casserole was AWESOME! I didn’t know how to post my comment, so please cut and paste as you like. We had as a side dish with Eggplant Parmesean…..I will be serving this more often!!!

      Gail Rappa

      Reply

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    Sharon Rigsby, blogger at GritsandPinecones.com

    Hello, I'm Sharon Rigsby, blogger, content creator, videographer, and photographer for Grits and Pinecones®. I have over 50 years of experience in the kitchen, and I like nothing better than developing and reimagining recipes for my family, friends, and you!

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