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Stuffed champignons with onions and nuts

Author
Cookinero 16 Jan 2026
820
Stuffed champignons with onions and nuts

Champignons stuffed with walnuts and fried onions in sour cream sauce with herbs is an exquisite and light appetizer that is perfect for a festive table or a buffet. For its preparation, it is best to take large champignons, their caps are easier to stuff. And if you replace sour cream with coconut or almond milk, the dish will become vegetarian.

How to cook Stuffed champignons with onions and nuts

Step 1

Stuffed champignons with onions and nuts

Finely chop the onion.

Step 2

Stuffed champignons with onions and nuts

Separate the stems from the caps of the champignons. Finely chop the stems.

Step 3

Stuffed champignons with onions and nuts

Chop the parsley and nuts.

Step 4

Stuffed champignons with onions and nuts

Heat a frying pan and pour in vegetable oil. Fry the onion over medium heat until golden brown.

Step 5

Stuffed champignons with onions and nuts

Add mushrooms and fry for another 2 minutes.

Step 6

Stuffed champignons with onions and nuts

In a deep bowl, mix the fried onions with mushrooms, nuts, parsley and sour cream. Salt, pepper and mix the filling.

Step 7

Stuffed champignons with onions and nuts

Grease a baking dish with vegetable oil, place the mushroom caps in it and fill it with the filling.

Step 8

Stuffed champignons with onions and nuts

Place the mushrooms in the oven to bake for 10-15 minutes.

Step 9

Stuffed champignons with onions and nuts

Sprinkle the finished mushrooms with chopped herbs.

Stuffed champignons with onions and nuts - FAQ About Ingredients, Baking Time and Storage

Absolutely! You can omit nuts entirely or replace them with toasted breadcrumbs for crunch. Sunflower seeds also work well as a nut-free alternative.
Store in an airtight container for 3-4 days. Reheat in the oven at 350°F (175°C) for best texture - microwaving may make them soggy.
Yes! Use dairy-free sour cream alternatives and ensure nuts are processed in allergen-safe facilities. Nutritional yeast can add extra umami flavor.
After separating stems, pat caps dry with paper towels. Optionally, bake them empty at 400°F (200°C) for 5 minutes before stuffing to remove excess moisture.
Yes! Assemble up to 24 hours in advance. Keep stuffed caps covered in fridge, then add 2-3 minutes to baking time since they'll be cold from refrigeration.
Serve 4-5 stuffed mushrooms per person alongside quinoa or couscous. Add lentils or chopped spinach to the filling mixture for extra protein and bulk.
Walnuts or pecans add great flavor, but almonds or pine nuts work well too. Toast them lightly before chopping for enhanced nuttiness in the filling.
Yes! Freeze unbaked stuffed caps on a tray until firm, then transfer to freezer bags. Bake directly from frozen, adding 5-7 minutes to cooking time.

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