Perfect for gatherings, these savoury pastries are best served warm and are ideal for those who appreciate simple, authentic flavors.
These mushroom savoury pastries are golden brown pockets filled with a flavorful, earthy mushroom filling. Encased in flaky phyllo dough, the pastry's delicate layers contrast beautifully with the richness of the sautéed mushrooms and caramelized onions.
My love to these pastries runs deep. I was inspired by traditional bourekas, a dish I grew up eating during family celebrations. They were always a staple in our home—flaky, savory, and flavorful. Over time, I adapted the recipe to make a vegan version, using mushrooms to create that hearty, satisfying filling I remember from childhood.
Bourekas, with their roots in Middle Eastern and Balkan cookery, are filled with various ingredients, including cheese, spinach, or potatoes. Here, I opted for a mushroom filling that’s both hearty and naturally vegan. Combining caramelized onions and mushrooms creates a savory, sweet balance that tastes fantastic when wrapped in flaky phyllo pastry.
What makes them a fantastic appetizer is their versatility and ease of preparation. You can make these in large batches, bake them until golden brown, and serve them warm or at room temperature. They’re a crowd-pleaser, especially for those seeking a lighter, plant-based option. I love making these because they’re all-natural, quick to assemble, and always feel like a special treat—just one reason your guests will love them, too.
Ingredients for Savory Mushroom Pastry
- Phyllo dough: Thin, flaky sheets that bake up crispy and light.
- Mushrooms: Earthy, meaty mushrooms that form the heart of the filling.
- Red and sweet onions: Caramelized to perfection, adding sweetness to the savory pastry.
- Margarine or butter: Adds richness to the pastry and filling.
- Olive oil: A must for sautéing the onions and mushrooms to golden perfection.
- Thyme: Fresh or dried, this herb adds an earthy aroma that pairs perfectly with the mushrooms.
- Salt and lemon juice: To balance and brighten the flavors, creating a delicious filling.
See recipe card for quantities.
Directions to Make Mushroom Savoury Pastries
Prepare the Filling
First, thaw your pastry dough overnight in the fridge or for a few hours on the counter. While you wait, finely chop your onions and preheat a pan over medium heat. Add margarine and olive oil, and sauté the onions until they turn translucent, about 5-10 minutes. Lower the heat and let the onions caramelize for another 20 minutes, stirring occasionally to prevent burning.
Prepare Mushrooms for the Filling
While the onions cook, slice the mushrooms, ensuring the pieces are neither too thin nor too thick, allowing them to hold their texture. Once the onions are done, add the mushrooms to the pan, turning up the heat slightly to help them brown, and add the spices. Cook for about 10-15 minutes, then season with thyme, salt, and a dash of lemon juice, tasting and adjusting as needed. The filling should be savory with a subtle sweetness and a hint of acidity.
Assemble the Pastries
Preheat the oven to 350°F and line two baking sheets with parchment paper. Melt a bit of margarine for brushing the phyllo sheets. Lay one sheet of pie dough on a clean surface, covering the rest with a towel to prevent drying out. Lightly brush the phyllo with the margarine mixture, fold it in half lengthwise, and brush again.
Spoon a small amount of mushroom filling onto the bottom corner of the phyllo strip, then fold the edges together diagonally to form a triangle. Continue folding the dough over the filling, keeping a neat triangle shape as you go. Brush the outside of the finished pastry with margarine and place it on the prepared baking sheet. Repeat the process with the remaining dough and filling.
Bake to Perfection
Place the trays in the oven and bake for 15-20 minutes, checking to make sure the pastries turn a beautiful golden brown. The flaky phyllo will crisp up as the mushroom filling softens inside, creating a delightful texture contrast. Let the pastries cool for 5 minutes before serving.
Storage Instructions
While these pastries are best enjoyed fresh, they can be stored in the fridge for up to two days. To reheat, pop them in the oven rather than the microwave to maintain their crispness. If frozen, allow them to thaw fully before reheating in the oven to avoid soggy dough.
Accompanying Dishes
This is a great, healthy appetizer to engage your guests with, but there are many more options. For more puff pastries to add to your spread, consider these amazing puff pastry pumpkin pockets with caramelized onions. If you want to make your whole appetizer menu vegan, serve alongside these vegan eggplant parmesan stacks or roasted beet hummus.
Mocktail Pairings
For a refreshing contrast to the rich filling, pair these savoury pastries with a citrusy mocktail like a butterfly pea flower tea or a orange grapefruit punch. The bright, zesty flavors of these drinks enhance the earthy mushrooms and caramelized onions, creating a balanced, light pairing that’s perfect for any gathering.
For a fall-flavored drink, consider this spiced cranberry juice, pumpkin pie martini mocktail, or pumpkin spice latte.
Mushroom Savoury Pastries
Equipment
- frying pan
- silicone brush
Ingredients
- ½ a package of store-bought phyllo dough
- 2 pounds mushrooms
- 2 red onions or a combination of sweet and red onions
- 2 Tb of margarine or butter, if you’re not vegan or lactose-intolerant
- 1 Tb of olive oil
- 2 teaspoons dry thyme or 2 Tb fresh thyme (fresh is better)
- ½ teaspoon salt or more, to taste
- Juice of ⅛ of a lemon
- 1 Tb margarine or butter, melted
Instructions
- If working with frozen dough, defrost your phyllo dough overnight in the fridge, or leave on the counter for a few hours.
- Preheat your oven to 350 degrees Farenheit.
- Chop onions finely.
- Preheat a pan over medium heat. Once pan is hot, add your margarine and oil and let it melt. Add onions to the pan and cook over medium heat for 5-10 minutes, until they are starting to turn translucent. Lower heat to low, and let onions reduce and caramelize for 20 minutes.
- Slice mushrooms, taking care to not slice too thinly or too thickly. Chop the larger slices into smaller pieces. You want your mushrooms to retain their meatiness, but also be small enough to fit into phyllo triangles.
- Add mushrooms to the pan with the onions, and raise heat to medium. Let cook until mushrooms brown, about 10-15, stirring occasionally.
- Add herbs, salt, and lemon, tasting and correcting flavours as necessary. You want the filling to be rich, earthy, sweet and salty, but with a burst of bright acidity that cuts through the meatiness.
- Prepare your phyllo dough. Cover your work surface with parchment paper. Line two cookie sheets with parchment paper, and oil them slightly. If you haven’t done so yet, melt 1 tablespoon of margarine in a small bowl, and dilute it with 1 teaspoon of water.
- Carefully spread out one phyllo sheet on your work surface, covering the rest with a towel so they don’t dry out. With a pastry brush, lightly brush your sheet with the melted margarine and water mixture. Cover it in half lengthwise, and dab lightly with the margarine mixture.
- To prepare the bourekas, spoon 1 tablespoon of the mushrooms and onion filling at the right end of the strip. Fold the end of the strip diagonally over the filling to form a neat triangle, pushing in the corners to ensure it's nice and snug around the filling.
- Continue folding the strip over on top of itself, keeping it in a neat triangle after each fold, until you reach the strip’s end (take care to fold the triangles tightly around the filling, as phyllo dough without filling tends to dry out and crisp in the oven). If any errant dough remains at the end of your strip, cut it off. Brush your triangle with the margarine-water mixture, and lay out on the parchment paper-covered cookie sheet.
- Repeat as necessary, until you run out of dough or filling. Any remaining filling will taste great piled on toast.
- Bake the pastries for 15-20 minutes, until they are golden brown. Check periodically after 10 minutes to ensure the pastries are not burning.
- Serve bourekas warm, or hot, or in room temperature, with a light salad or a simple brothy soup. They taste best when eaten fresh, and do not keep well. Reheat the bourekas only in the oven – the microwave will make it soggy.
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