Stuffed mushrooms au gratin

Stuffed mushrooms au gratin
For this fairly sophisitcated recipe, the mushrooms caps are marinated and pre-cooked in the oven. They are then filled with a delicious mix of potatoes, sausage and cheese before being baked gratin-style.
31K 7 4.3
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Last modified on: May 10th 2023

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For 10 mushrooms, you will need:

Change these quantities to make: 5 mushrooms 10 mushrooms 20 mushrooms 30 mushrooms
How long does it take?
Time required for this recipe:
PreparationCookingStart to finish
21 min.49 min.1 hour 10 min.
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Step by step recipe

Stage 1 - 10 min.
Stuffed mushrooms au gratin
Fry 1 sausage.

Sausages vary enormously in size, but this doesn't really matter. Fry about 100g of sausage and use what you like of it later in the recipe.

Stage 2 - 4 min.
Stuffed mushrooms au gratin
Prepare 10 mushrooms, keep only the heads.

Stage 3 - 5 min.
Stuffed mushrooms au gratin
Prepare the marinade by mixing 3 tablespoons lemon juice, 3 tablespoons olive oil, 1 shallot, some finely chopped parsley, salt and pepper.

Stage 4 - 2 min.
Stuffed mushrooms au gratin
Drizzle the marinade over the mushrooms, mix well and leave in the fridge to marinate for at least 1 hour, covered with plastic film.

This can be done the day before.

Stage 5 - 5 min.
Stuffed mushrooms au gratin
Chop the mushroom stalks into small pieces.

Stage 6 - 1 min.
Stuffed mushrooms au gratin
Pour 2 tablespoons olive oil into a small frying pan on high heat. When hot, add 1 shallot, chopped finely.

Salt, pepper and cook for 1 minute without colouring.

Stage 7 - 3 min.
Stuffed mushrooms au gratin
Add the chopped mushroom stalks and sauté for 2 or 3 minutes. Salt after cooking and set aside.

Stage 8 - 20 min.
Stuffed mushrooms au gratin
Preheat the oven to 390°F (200°C).

Sit the mushroom caps on a wire rack and stand this on a baking tray lined with a sheet of cooking parchment.

Put the mushrooms in the oven for 20 minutes. This will not fully cook them, just make them release their water.

Stage 9
Stuffed mushrooms au gratin
Meanwhile, cut the sausage into small pieces and grate the cheese, if not already done.

Stage 10
Stuffed mushrooms au gratin
Use a fork to crush 100 g cooked potatoes in a bowl.

Stage 11
Stuffed mushrooms au gratin
Add the sausage pieces, half the grated cheese, the sautéed mushroom stalks and any remaining marinade.

Salt and pepper, then check the seasoning.

Stage 12
Stuffed mushrooms au gratin
Take the mushrooms out of the oven and turn them over...

Stage 13 - 5 min.
Stuffed mushrooms au gratin
...then fill with the stuffing mixture. Scatter the rest of the grated cheese over the top.

Stage 14 - 15 min.
Stuffed mushrooms au gratin
Return to the oven to brown for 10 to 15 minutes.

Stage 15
Stuffed mushrooms au gratin
Serve either hot or warm.
Choose large mushrooms if possible as thesy are easier to fill. Portobello or field mushrooms are ideal, but use whatever you prefer.
Should be eaten freshly cooked.
Home made.
Nutritional information
Whole recipe
Energetic valueProteins CarbohydratesFats
1,248 Kcal or 5,225 Kj24 gr35 gr113 gr
62 %9 %3 %17 %
Per 100 g
Energetic valueProteins CarbohydratesFats
328 Kcal or 1,373 Kj6 gr9 gr30 gr
16 %2 %1 %4 %
Per mushrooms
Energetic valueProteins CarbohydratesFats
125 Kcal or 523 Kj2 gr3 gr11 gr
6 %1 %<1 %2 %
% are calculated relative to a Recommended Dietary Intake or RDI of 2000 k-calories or 8400 k-joules by day for a woman (change to a man).
Possible allergens in this recipe: Milk
How much will it cost?
  • For 10 mushrooms : 1.98 €
  • Per mushrooms : 0.20 €

Change currency:

Note: Be careful, these prices are only an estimate, you can consult the table of prices by ingredients used for this estimate.
This recipe uses (among others)
Cooked potatoesCooked potatoes: You can check-out other recipes which use it, like for example: Seb's Italian-style aperitif slices, Winemaker's toast, Comtois surprise bread, Croque-monsieur potatoes, Baked salmon fillet, ... All
Grated cheeseGrated cheese: You can get more informations, or check-out other recipes which use it, for example: Thin spinach and potato tart, Cauliflower and chickpea purée, Bourguignon potatoes , Chard and potato gratin, Stuffed baguette , ... All
MushroomsMushrooms: You can get more informations, or check-out other recipes which use it, for example: Rillettes stuffed mushrooms, Breton leek and mushroom tart, Celeriac and mushroom gratin, Mushroom bourguignon, Fillets of sole Dieppoise, ... All
Lemon juiceLemon juice: You can check-out other recipes which use it, like for example: Rémoulette dressing, Crab Cakes, Lebanese Tabbouleh, Simple mushroom salad with thyme and lemon, 3 ways, Peach and verbena feuilleté, ... All
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