Preheat oven to 425 degrees. In a large nonstick skillet, heat oil over medium-high. Add onion; cook, stirring occasionally, until golden brown, 5 to 6 minutes. Add mushrooms; cook, stirring occasionally, until mushrooms are tender, 4 to 5 minutes. Season with salt and pepper; set aside.
On a lightly floured work surface, roll out dough (still folded in thirds) to a 20-by-10-inch rectangle. Using a pizza cutter or sharp knife, trim edges straight; cut dough into four 10-by-5-inch rectangles. Dividing evenly, mound mushroom mixture on one half of each rectangle, leaving a 1/2-inch border on three sides. Lightly brush border with water; fold other half of pastry over filling, and press edges firmly to seal. With a floured fork, crimp edges.
Using a wide metal spatula, transfer turnovers to a large baking sheet. With a paring knife, cut 3 to 4 small slits in the top of each turnover. Bake until golden and puffed, 20 to 25 minutes. Let cool 5 minutes; serve turnovers with sour cream.
Mixed mushrooms offer a variety of tastes and textures but keep the shopping list short.
SOOOOOOOOOOO DELICIOUS! I mixed some with Italian sausage also.
I would recommend cooling the filling as it will melt the pastry and make handling difficult.
I added italian sausage and it was great!
I also used butter and added some dry red wine to saute and also loved the pastry.
I used butter an d olive oil to sute. I added orv sauted few anchovies with the onion prior to adding the mushrooms.
Yummy
+I+used+butter+to+saute+the+mushrooms+and+onions+and+found+that+it+added+a+richness+to+the+flavor.++It+was+fantastic%2C+The+parmesan+cheese+also+added+another+depth+of+flavor%2C+and++I+will+definitely+make+again%21+
This was really great! My 3 year old son loved it!
I used butter to saute onions and mushrooms (portabellas) and added parmesean cheese to the filling. WOW!! This is a real keeper, love it and is great with a salad
I used butter to saute onions and mushrooms (portabellas) and added parmesean cheese to the filling. WOW!! This is a real keeper, love it and is great with a salad