This stuffed mushrooms recipe is an easy appetizer to prepare for parties and gatherings. Just fill with bread crumbs and parmesan cheese, then bake until tender with a crispy crust. The perfect bite-sized hot starter!
Jessica’s Recipe Science
- Mushrooms are about 92% water, so they shrink significantly during baking. Starting with 2 to 2½-inch caps ensures a hearty bite.
- Packing about 1 tablespoon of filling allows moisture released from the mushrooms to hydrate the stuffing and prevents dryness.
- Drizzling olive oil over the breadcrumbs before baking improves heat transfer, helping the topping brown evenly and turn crisp.
Why It Works
Stuffed mushrooms are always a massive hit during the holidays, special occasions, or even game days. My recipe requires no extra stovetop cooking. Just mix, fill, and bake. The contrast between tender and juicy mushrooms and crunchy topping makes them disappear fast!
This appetizer recipe is ready in under an hour and can be prepared in advance to save you time on the day of serving. My family loves it when I make these as an appetizer, served with garlic bread and Grandma’s famous spaghetti and meatball recipe.
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Ingredients You’ll Need
- Mushrooms: I use large brown mushrooms between 2 to 2 ½ inches in diameter to give a hearty two-bite piece. If you prefer a one-bite experience, use ones that are 1 ½ to 2 inches wide. The mushrooms shrink significantly after cooking because they contain about 92% water. This recipe makes 16 servings, more if using smaller sizes.
- Bread Crumbs: Use Italian-style breadcrumbs for the mushroom filling. It has already been seasoned with dried parsley, salt, onion powder, and garlic powder. This saves you from needing to purchase extra ingredients. If desired, you can use plain bread crumbs and add additional seasonings to enhance the taste.
- Cheese: Using an aged, dry cheese like Parmesan, Parmigiano-Reggiano, or Pecorino Romano is very important. They add a salty, nutty flavor that helps create a super-crispy topping.
- Herbs: Finely chopped Italian parsley and basil add herbaceous notes.
- Seasoning: Fresh garlic adds a hint of spiciness. A little bit of salt and pepper enhances the savory taste.
- Oil: Coat the stuffing mixture with a few tablespoons of olive oil to prevent the filling from tasting mushy, and it helps the surface turn crispy.
See the recipe card below for all ingredients and measurements (US and metric).
Ingredient Substitutions
The filling options for stuffed mushrooms are endless! Depending on whether you want a rich, creamy texture or to add protein and seasonings, here are a few ideas. Remember that the surface will become less crisp as more moisture is added.
- Mushroom Substitutes: The types of mushrooms selected will impact the taste and texture. White button mushrooms are mild in flavor and tender. Brown Cremini and Baby Bella mushrooms harvested later have a more pungent, umami flavor and a firmer texture, which is excellent for stuffing. Some markets even sell packages of “stuffer” cremini mushrooms that are larger and weigh at least 1 ounce, so you don’t have to hunt for the bigger size.
- Bread Crumb Options: Other types of bread crumbs can be used, like homemade bread crumbs or Japanese panko breadcrumbs. They have a larger particle size, resulting in a more spongy texture and larger, crunchier bites. Although in testing, I found that panko does not brown as deeply when baked.
- Cheese Swaps: High-moisture, shreddable cheeses like mozzarella, gouda, cheddar, or gruyere can be used, but the stuffing will taste denser and have less crunch. You can add cream cheese or feta for a richer cheese filling.
- Add Protein: Make sausage stuffed mushrooms, ground beef, chicken, turkey, or try seafood like crab or lobster.
- Vegetarian Options: Use chopped spinach, onions, bell peppers, ucchini, corn, or jalapenos.
- Herb Swaps: Switch up the fresh herbs to include oregano, basil, thyme, marjoram, sage, or rosemary. Try my homemade Italian seasoning for a stronger, more aromatic flavor. Use ⅓ as much dried herbs when substituting for fresh.
- Oil Substitutes: Use avocado oil, coconut oil, melted butter, or ghee.
How to Make Stuffed Mushrooms
Step 1: Preheat the Oven
After lots of testing, I found that baking at 400ºF (200ºC) until the mushrooms are tender and the tops are golden brown and crunchy makes them extremely flavorful.
Step 2: Prepare the Mushrooms
The gentlest cleaning method is to use a paper towel or a pastry brush. Wipe each mushroom, one at a time, to remove any dirt on the cap. Also, remember to remove any dirt from inside the cap once you take off the stem. You can dampen the towel if needed to remove any stubborn debris.
Remove the stems by snapping them off with your fingers, or use a small spoon to scoop them out. I don’t use the stems in the stuffing for this recipe, but you can if you pre-cook them.
Pro Tip: Another cleaning method is to rinse the mushrooms lightly with cool water and pat them dry with paper towels. Do not soak them! They are like sponges. If too much moisture is absorbed, they will become slimy on the surface and won’t brown when baking.
Step 3: Make the Stuffing
I developed an effortless and flavorful filling that you don’t have to pre-cook in a skillet. Stir together equal parts bread crumbs, grated Parmesan cheese, fresh parsley, basil, minced garlic, salt, and pepper. It’s simple and delicious!
Step 4: Stuff Each Cap
In each mushroom cap, add about 1 tablespoon of the filling. Lightly pack it down to create a slight dome shape. You don’t want to overfill because the stuffing will taste very dry if significantly higher than the cap. The juices released from the mushrooms will help hydrate the center, while a delicious, crisp crust forms on top when baked.
A tip from my Italian mother-in-law Joan: Drizzle olive oil over the bread crumbs filling right before baking. This ensures the bread turns golden brown and super crunchy. I use about ½ teaspoon per mushroom.
Step 5: Bake
Line a large sheet pan with foil for easy cleanup. Drizzle olive oil or cooking spray over the foil enough to coat it, so the mushroom bottoms don’t stick. This will also turn them a gorgeous brown hue, adding more flavor. Evenly space the mushrooms on the sheet pan. Baking the stuffed baby mushrooms takes about 20 minutes.
Step 6: To Serve
Enjoy the savory stuffed mushrooms while still warm to experience the delicious crispy texture contrast. I sprinkle some chopped parsley on top right before serving for a pop of color.
For a dinner party, I would serve these with garlic bread, Caesar salad, chicken alfredo, or shrimp scampi.
Frequently Asked Questions
Don’t salt the mushrooms because it will draw out the moisture, releasing the juices much faster. Bake at a higher temperature to quickly tenderize the caps while helping to dry the liquids released. Use a drier bread-crumb filling to absorb juices and prevent sogginess. Do not add fresh vegetables; cook them first!
Remove any visible dirt from the surface with a damp paper towel. You can rinse the caps briefly under cool water and dry them quickly, so they do not absorb too much moisture. Never soak mushrooms!
Chopped mushroom stems can be added to the stuffing. However, it must be cooked first to remove the excess moisture. The juices make the filling soggy and not as crispy if cooked raw. It will also cause the stuffing to lose structure and collapse. Sauté the chopped pieces in olive oil until tender, then mix with the stuffing ingredients.
Bake at 400ºF (200ºC) for 15 to 20 minutes, depending on the size of the mushroom and the amount on the baking sheet. This temperature cooks the mushroom without shrinking it, browning the surface for the best flavor.
Cooked stuffed mushrooms last in the fridge for up to 3 days for the best taste. Stuffed and unbaked mushrooms can be stored for up to 2 days before baking.
More Appetizer Recipes
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Stuffed Mushrooms
Ingredients
- 18 large brown mushrooms, 2 to 2 ½" in diameter
- ½ cup Italian-style bread crumbs
- ½ cup grated parmesan cheese
- 1 tablespoon chopped parsley
- 1 tablespoon chopped basil
- 2 teaspoons minced garlic
- ¼ teaspoon kosher salt
- ¼ teaspoon black pepper
- 2 tablespoons olive oil, plus more for drizzling
Instructions
- Preheat the Oven – Set the oven rack to the middle position. Preheat to 400ºF (200ºC). Line a rimmed baking sheet with foil. Grease with olive oil to prevent sticking.
- Prepare the Mushrooms – Quickly rinse the mushroom caps and dry well. Alternatively, wipe away any dirt with a paper towel or pastry brush. Remove the stems.
- Make the Stuffing – In a medium bowl, combine the bread crumbs, parmesan cheese, garlic, parsley, basil, salt, and pepper. Add 2 tablespoons of olive oil, mixing until the bread crumbs are evenly coated.
- Stuff Each Cap – Stuff each mushroom cap with about 1 tablespoon of filling, lightly packing it into a small mound. Do not overfill.
- Bake – Transfer stuffed mushrooms to the greased baking sheet. Drizzle about a ½ teaspoon of olive oil over the filling of each mushroom. Bake until tender, and the tops are golden brown and crispy, about 18 to 20 minutes.
- Serve – Transfer to a platter and serve immediately while still hot. If desired, garnish with chopped parsley.
Recipe Video
Notes
- Smaller Mushrooms: Under 2 inches in diameter, add about 2 teaspoons of stuffing. Check for doneness after 15 minutes.
- Using Plain Bread Crumbs: Combine ½ cup plain bread crumbs, ½ teaspoon kosher salt, ½ teaspoon Italian seasoning, ¼ teaspoon onion powder, and ¼ teaspoon garlic powder.
- Make it Gluten-Free: Use gluten-free bread crumbs
- Make Ahead: The mushrooms can be filled and then refrigerated 3 days in advance before baking.
- Storing: Refrigerate in an airtight container for up to 3 days.
- Reheating: Microwave on high setting in 15-second intervals until hot. Alternatively, place on a lightly greased foil-lined sheet pan and warm at 325ºF (165ºC) until hot, about 15 minutes.
Nutrition Facts
Percent Daily Values are based on a 2000-calorie diet. All nutritional information is based on estimated third-party calculations. Each recipe and nutritional value will vary depending on the brands you use, measuring methods, and portion sizes per household.
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