Mushroom Onion Gruyere Tart Recipe

Name: Mushroom Onion Gruyere Tart
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 tablespoon canola oil; 1 tablespoon butter; 1 sweet onion (sliced); 1 lb mushroom (sliced); salt (to taste); pepper (to taste); 1 sheet puff pastry (defrosted); 2 -3 tablespoons honey mustard; 3/4 cup gruyere cheese; 1 tablespoon milk; 1 egg

Servings: persons

1 tablespoon canola oil
1 tablespoon butter
1 sweet onion (sliced)
1 lb mushroom (sliced)
salt (to taste)
pepper (to taste)
1 sheet puff pastry (defrosted)
2 -3 tablespoons honey mustard
3/4 cup gruyere cheese
1 tablespoon milk
1 egg

1
Preheat oven to 450 degrees F.
2
Line a cookie sheet with a sheet of bakers parchment paper.
3
Place a sheet of puffed pastry flat on parchment.
4
In skillet over medium low heat add olive oil and butter.
5
Saute onion for 15 minutes or until translucent. Stir frequently.
6
Add mushrooms to skillet .
7
Saute until tender about 15 minutes. Stir frequently.
8
Add salt and pepper to mushroom onion mixture (to taste).
9
Remove from heat and set aside.
10
Mix egg and milk together with a whisk until well blended.
11
Paint the puffed pastry with the honey mustard leaving a 1/2 inch border.
12
Add the mushroom onion mixture on top of the mustard leaving about a 1/2 inch border.
13
Sprinkle the cheese on top of the mushroom onion mixture.
14
Paint the border of the puffed pastry dough with egg wash (Discard leftover egg wash).
15
Place tart in oven and bake for 15-20 minutes until pastry has puffed up and browned.
16
Enjoy!

249

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

No additional tips available.

No specific allergen information. Please check the ingredient list for possible allergens.

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This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 11 ingredients. The key ingredients include: 1 tablespoon canola oil, 1 tablespoon butter, 1 sweet onion (sliced), 1 lb mushroom (sliced), and more.

Yes, Mushroom Onion Gruyere Tart falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Mushroom Onion Gruyere Tart

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