Mix all ingredients until well blended. Roll thin on floured board. Cut into desired shapes or fill bite size pastry tins. Bake at 450 degrees for 12 minutes or until brown. Cool and fill with mushroom or favorite filling.
Saute mushrooms, butter and onions. Add salt, pepper, nutmeg, lemon juice, flour and mix. Add sour cream and mix well. Fill bite size pastries. Enjoy!