Mushroom Julienne in Tartlets (Oven-Baked)
A hot appetizer that will disappear from the table right away! Mushroom julienne in tartlets baked in the oven is always a sure bet. Sautéed champignons with sour-cream sauce and stretchy melted cheese is loved by everyone. It looks restaurant-worthy, yet it’s quick and easy to make!
Updated : 05 February, 2026
Easy
About 30 min.
Ingredients
12
Ready-made tartlets
450 grams
Champignon
2 tablespoon
Vegetable oil
1
Onions
150 grams
Sour cream
1 teaspoon
Wheat flour
to taste
Salt
100 grams
Hard cheese
Table
Table of volume measurements:
- teaspoon - 5 ml
- dessert spoon - 10 ml
- tablespoon - 20 ml
- glass - 200 ml
Preparation
Step 1
Prepare the necessary ingredients. You can also use wild mushrooms. If they are frozen, thaw and squeeze out excess water. In that case, use a larger weight of mushrooms. Use odorless vegetable oil.
Step 2
Rinse the peeled onion and dice it finely. Rinse the champignons and pat dry well. Dice the mushrooms finely as well.
Step 3
Heat the vegetable oil in a suitably sized skillet. Over medium heat, sauté the onion for 3 minutes, stirring occasionally.
Step 4
Add the mushrooms to the skillet. Over moderate heat, cook until the released moisture evaporates, stirring so they cook evenly. Salt the mushrooms and stir. Add any spices to taste.
Step 5
Sprinkle the mushrooms with flour to make the julienne thicker and mix well. Sauté the mushrooms with the flour over medium heat for 1 minute. Add sour cream and stir.
Step 6
Cook over low heat for a couple more minutes. Remove the skillet from the heat. Transfer the filling to a separate bowl so it cools slightly.
Step 7
Grate the cheese on a medium or fine grater. Choose any cheese you like, as long as it’s good quality and melts well.
Step 8
Fill the tartlets with the mushroom julienne. Generously sprinkle each tartlet with grated cheese on top. You can also garnish with sautéed mushroom slices. Place the tartlets on a parchment-lined baking sheet.
Step 9
Bake in a preheated oven at 180°C (356°F) for about 20 minutes, until the cheese melts. The time may vary depending on your oven.
Step 10
Serve the mushroom julienne in tartlets hot or warm. Enjoy your meal!
Author note
Share the recipe
)