Seafood Stuffed Mushrooms with Sardines

Why You’ll Love This Recipe

• Easy to prepare with simple ingredients
• Packed with rich seafood flavor
• Perfect as an appetizer or party snack
• Nutritious and high in protein
• Budget-friendly thanks to canned sardines
• Crispy, golden topping adds great texture
• Can be prepared ahead of time
• Elegant presentation with minimal effort

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the Mushrooms

• 16 large white or cremini mushrooms
• 1 tablespoon olive oil

For the Filling

• 2 cans (3.75 ounces each) sardines, drained and flaked
• Mushroom stems, finely chopped
• 2 cloves garlic, minced
• ¼ cup onion, finely diced
• ½ cup breadcrumbs
• ¼ cup grated Parmesan cheese
• 2 tablespoons cream cheese, softened
• 1 tablespoon lemon juice
• 2 tablespoons fresh parsley, chopped
• ½ teaspoon dried oregano
• ¼ teaspoon black pepper
• ¼ teaspoon salt

For the Topping

• 2 tablespoons breadcrumbs
• 2 tablespoons Parmesan cheese
• 1 tablespoon olive oil

Directions

1. Preheat the oven to 375°F (190°C).
2. Clean the mushrooms and carefully remove the stems. Finely chop the stems and set aside.
3. Lightly brush the mushroom caps with olive oil and arrange them in a baking dish or on a baking sheet.
4. Heat a small skillet over medium heat.
5. Add a drizzle of olive oil, then sauté the chopped mushroom stems and onion for 3–4 minutes until softened.
6. Add the garlic and cook for 30 seconds until fragrant.
7. Transfer the mixture to a bowl and allow it to cool slightly.
8. Add the sardines, breadcrumbs, Parmesan cheese, cream cheese, lemon juice, parsley, oregano, salt, and black pepper.
9. Mix thoroughly until the filling is well combined.
10. Spoon the filling into each mushroom cap, mounding it slightly.
11. In a small bowl, combine the topping breadcrumbs, Parmesan cheese, and olive oil.
12. Sprinkle the topping evenly over the stuffed mushrooms.
13. Bake for 18–22 minutes until the mushrooms are tender and the tops are golden brown.
14. Allow to cool for a few minutes before serving.

Servings and Timing

• Servings: 6 to 8 appetizer servings
• Prep Time: 15 minutes
• Cook Time: 20 minutes
• Total Time: 35 minutes

Variations

• Mediterranean Style: Add chopped olives, capers, and feta cheese.
• Spicy Version: Mix in red pepper flakes or finely diced jalapeños.
• Crab and Sardine Stuffing: Combine sardines with lump crab meat.
• Herb Lovers’ Version: Add fresh dill, thyme, or basil.
• Gluten-Free Option: Use gluten-free breadcrumbs.
• Cheesy Stuffed Mushrooms: Add mozzarella or Gruyère to the filling.
• Spinach Seafood Mushrooms: Stir in finely chopped sautéed spinach.

Storage/Reheating

Storage

Store leftover stuffed mushrooms in an airtight container in the refrigerator for up to 3 days.

Reheating

Reheat in a 350°F (175°C) oven for 8–10 minutes until warmed through. You can also use an air fryer for a crispier topping. Avoid microwaving if possible, as it may soften the texture.

FAQs

Can I use canned sardines for this recipe?

Yes. Canned sardines are ideal because they are convenient, flavorful, and blend easily into the stuffing.

What type of mushrooms work best?

Large white button mushrooms or cremini mushrooms are excellent choices because they provide enough space for the filling.

Can I make these ahead of time?

Yes. Assemble the mushrooms up to one day ahead and refrigerate until ready to bake.

Do sardines make the mushrooms taste fishy?

Sardines provide a rich seafood flavor, but the herbs, garlic, cheese, and lemon help create a balanced taste.

Can I use another fish instead of sardines?

Yes. Canned tuna, salmon, crab, or cooked shrimp can be substituted.

How do I keep the mushrooms from becoming watery?

Avoid washing mushrooms excessively and remove excess moisture before stuffing and baking.

Can I freeze stuffed mushrooms?

While possible, the texture of the mushrooms may soften after thawing. Freshly baked is best.

What can I serve with stuffed mushrooms?

They pair well with salads, seafood platters, charcuterie boards, or as part of an appetizer spread.

Can I make them dairy-free?

Yes. Omit the cheeses or use dairy-free alternatives.

Are stuffed mushrooms served hot or cold?

They are best served warm, straight from the oven or shortly after baking.

Conclusion

Seafood Stuffed Mushrooms with Sardines are a flavorful and elegant appetizer that transforms simple ingredients into an impressive dish. The combination of tender mushrooms, savory sardines, herbs, cheese, and a crispy breadcrumb topping creates a delicious bite that’s perfect for entertaining or enjoying as a special starter. Easy to prepare and packed with flavor, these stuffed mushrooms are sure to become a favorite addition to your appetizer collection.

Seafood Stuffed Mushrooms with Sardines

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Seafood Stuffed Mushrooms with Sardines are savory baked mushroom caps filled with a rich mixture of sardines, herbs, cheese, and breadcrumbs. Finished with a crispy golden topping, these elegant appetizers are flavorful, budget-friendly, and perfect for entertaining.

• Author: Laura
• Prep Time: 15 minutes
• Cook Time: 20 minutes
• Total Time: 35 minutes
• Yield: 6 to 8 appetizer servings
• Category: Appetizer
• Method: Bake
• Cuisine: American
• Diet: Low Calorie

Ingredients

• 16 large white or cremini mushrooms
• 1 tbsp olive oil
• 2 cans (3.75 oz each) sardines, drained and flaked
• Mushroom stems, finely chopped
• 2 cloves garlic, minced
• 1/4 cup onion, finely diced
• 1/2 cup breadcrumbs
• 1/4 cup grated Parmesan cheese
• 2 tbsp cream cheese, softened
• 1 tbsp lemon juice
• 2 tbsp fresh parsley, chopped
• 1/2 tsp dried oregano
• 1/4 tsp black pepper
• 1/4 tsp salt
• 2 tbsp breadcrumbs (for topping)
• 2 tbsp Parmesan cheese (for topping)
• 1 tbsp olive oil (for topping)

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Instructions

1. Preheat the oven to 375°F (190°C).
2. Clean the mushrooms and carefully remove the stems. Finely chop the stems and set aside.
3. Lightly brush the mushroom caps with olive oil and arrange them on a baking sheet or in a baking dish.
4. Heat a small skillet over medium heat and add a drizzle of olive oil.
5. Sauté the chopped mushroom stems and onion for 3 to 4 minutes until softened.
6. Add the garlic and cook for 30 seconds until fragrant.
7. Transfer the mixture to a bowl and let cool slightly.
8. Add the sardines, breadcrumbs, Parmesan cheese, cream cheese, lemon juice, parsley, oregano, salt, and black pepper.
9. Mix thoroughly until the filling is well combined.
10. Spoon the filling into each mushroom cap, mounding slightly.
11. In a small bowl, combine the topping breadcrumbs, Parmesan cheese, and olive oil.
12. Sprinkle the topping evenly over the stuffed mushrooms.
13. Bake for 18 to 22 minutes until the mushrooms are tender and the tops are golden brown.
14. Allow to cool for a few minutes before serving.

Notes

• Add olives, capers, and feta for a Mediterranean-inspired version.
• Use gluten-free breadcrumbs if needed.
• Canned tuna, salmon, crab, or cooked shrimp can replace the sardines.
• Finely chopped spinach can be added to the filling for extra nutrition.
• Assemble up to one day ahead and refrigerate before baking.
• Reheat in the oven or air fryer to maintain a crispy topping.

Nutrition

• Serving Size: 2 stuffed mushrooms
• Calories: 140 kcal
• Sugar: 2 g
• Sodium: 340 mg
• Fat: 8 g
• Saturated Fat: 2 g
• Unsaturated Fat: 5 g
• Trans Fat: 0 g
• Carbohydrates: 8 g
• Fiber: 1 g
• Protein: 9 g
• Cholesterol: 15 mg