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.
46 K 3.9/5 (8 reviews)
1 hour 10 min.
Easy
20 mushrooms
12 IngredientsLast modified on: May 10th 2023
For 20 mushrooms, you will need:
2 sausages
20 
6 tablespoons lemon juice
6 tablespoons 
2 
100 g 
200 g cooked potatoes
Times for this recipe
Preparation: 25 min.
Cooking: 50 min.
All in all: 1 hour 10 min.
If you start now, at , you will finish around : ?.Change start time
To finish around 7pm, you'll need to have started before: .Change end time
Step by step recipe
Stage 1 - 10 min.
Fry 2 sausages.
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.
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 3 - 5 min.
Stage 4 - 2 min.
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.
This can be done the day before.
Stage 5 - 5 min.
Chop the mushroom stalks into small pieces.
Stage 6 - 1 min.
Pour 4 tablespoons olive oil into a small frying pan on high heat. When hot, add 2 shallots, chopped finely.
Salt, pepper and cook for 1 minute without colouring.
Salt, pepper and cook for 1 minute without colouring.
Stage 7 - 3 min.
Add the chopped mushroom stalks and sauté for 2 or 3 minutes. Salt after cooking and set aside.
Stage 8 - 20 min.
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.
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
Meanwhile, cut the sausage into small pieces and grate the cheese, if not already done.
Stage 10
Use a fork to crush 200 g cooked potatoes in a bowl.
Stage 11
Add the sausage pieces, half the grated cheese, the sautéed mushroom stalks and any remaining marinade.
Salt and pepper, then check the seasoning.
Salt and pepper, then check the seasoning.
Stage 12
Take the mushrooms out of the oven and turn them over...
Stage 13 - 5 min.
...then fill with the stuffing mixture. Scatter the rest of the grated cheese over the top.
Stage 14 - 15 min.
Return to the oven to brown for 10 to 15 minutes.
Stage 15
Serve either hot or warm.
Remarks
Choose large mushrooms if possible as thesy are easier to fill. Portobello or field mushrooms are ideal, but use whatever you prefer.
Keeping: Should be eaten freshly cooked.
Source: Home made.
Nutritional information
| Proteins (gr) | Carbohydrates (gr) | Fats (gr) | Energy value (in k-calories) | Energy value (in k-joules) | |
|---|---|---|---|---|---|
| Whole recipe | 50 RDI=20 % | 70 RDI=7 % | 230 RDI=30 % | 2,500 RDI=130 % | 10,450 RDI: 130 % |
| Per 100 g | 6 RDI=2 % | 9 RDI=1 % | 30 RDI=4 % | 330 RDI=20 % | 1,380 RDI: 20 % |
| Per mushrooms | 2 RDI=1 % | 3 RDI=0 % | 10 RDI=2 % | 120 RDI=6 % | 520 RDI: 6 % |
How much will it cost?
- For 20 mushrooms : 4.00 €
- 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 potatoes
Like these other recipes: Deep leek and potato quiche, Thin spinach and potato tart, Green beans and potatoes with Morbier cream sauce, Gratin of Endives with Mont d'Or, Potato and cheese pie, ... See them all 51
Grated cheese
Like these other recipes: Spicy mustard cauliflower cheese, Salmon and Spinach Gratin, Bourguignon potatoes , Spinach Croque-monsieur , Chard and potato gratin, ... See them all 72
Mushrooms
Like these other recipes: Kérinou slices, Veal with mushrooms and green asparagus, Rice à la grecque, How to prepare fresh mushrooms, Sautéd mushrooms with spring onions and cured ham, ... See them all 62
Lemon juice
Like these other recipes: Gravlax, Thin summer tart "à la grecque", Marinated tuna and cabbage, Lebanese-style chickpea salad, Green hummus, ... See them all 72
Other recipes you may also like
Clarified butter
This is a way of melting butter to eliminate all the impurities. The clarified butter can then be heated without spoiling, and is more digestible. It is ideal for cooking at high temperatures where small black specks would spoil the appearance, or for emulsified sauces like béarnaise or mousseline.June 21th 2017465 K4.2 2 hours 15 min.
Confectioner's custard (Crème pâtissière, or French pastry cream)
Quite similar to crème anglaise but much thicker. It is used in many pastries like choux pastry (pâte à choux) or millefeuille.January 27th 2017758 K 313.7 40 min.
Fruit coulis (fruit purée)
Contrary to what people usually think, coulis is not just a simple fruit purée with sugar. Of course, this is the general principle, but it's possible to make something much better and more refined. This recipe is for a strawberry coulis (see below for other fruits): how to make it, but also how...October 20th 2012778 K 43 25 min.
Tartiflette
A personal version of a classic recipe from Savoy.September 16th 2019608 K 14.6 1 hour 30 min.
Artichoke hearts forestier
This recipe is not very complicated, but does involve some work: an artichoke heart with a layer of mushroom duxelle, a layer of fried bacon, topped with a poached egg and cream sauce. Everything can be prepared in advance (the day before for example), but the final assembly should be done just...May 10th 2023270 K5 1 hour 50 min.
News list of cooking-ez.com
Sign up to receive the latest recipes (next batch due to be sent on 2025-05-18)
Note: We'll never share your e-mail address with anyone else.
Post a comment or question
Follow this recipe
If you are interested in this recipe, you can "follow" it, by entering your email address here. You will then receive a notification immediately each time the recipe is modified or a new comment is added. Please note that you will need to confirm this following.
Note: We'll never share your e-mail address with anyone else.
Alternatively: you can subscribe to the mailing list of cooling-ez.com , you will receive a e-mail for each new recipe published on the site.