Russian Piroshki with mushroom potato filling–???????

Ingredients

• dough
• 5 cups all purpose flour
• 1 1/2 teaspoons salt
• 1 tablespoon active dry yeast
• 2 cups milk warm
• 3 eggs
• 1 teaspoon sugar
• 1 tablespoon vegetable oil
• onion 1/2 med., chopped
• 4 potatoes peeled, boiled in water and mashed
• 6 ounces button mushrooms cut in to small pieces ¾ of an inch
• salt
• pepper
• 1 tablespoon butter

Nutrition

• Calories : 480 calories
• Carbohydrate : 79 grams
• Cholesterol : 80 milligrams
• Fat : 10 grams
• Fiber : 5 grams
• Protein : 16 grams
• SaturatedFat : 3 grams
• Sodium : 620 milligrams
• Sugar : 5 grams