1/4 cup each finely chopped green onions, fresh mushrooms and ripe olives
In a large bowl, combine flour and salt. Cut in butter until crumbly. Stir in sour cream until a dough forms. Divide dough into fourths. Wrap in plastic and refrigerate for 2 hours or until easy to handle.
Combine the cheese, onions, mushrooms and olives. On a floured surface, roll one portion of dough into a 12x6-in. rectangle. Sprinkle a fourth of the cheese mixture over half of the dough; fold dough in half to form a 6-in. square. Cut into 2-in. squares; press edges to seal. Repeat with the remaining dough and filling.
Place squares 2 in. apart on ungreased baking sheets. Bake at 350° for 20-25 minutes or until golden brown. Serve warm.