Sauté onion in hot oil in a large skillet over medium-high heat 5 minutes. Add garlic, and cook 1 minute. Add beef; cook, stirring often, until meat crumbles and is no longer pink. Drain, cool, and set aside.
Stir together potato flakes and 1/4 cup hot water until smooth.
Add potato, cinnamon, and next 3 ingredients to beef mixture, stirring until blended.
Roll piecrusts into 12-inch circles; cut each crust into 6 (4-inch) circles. Roll out enough remaining crust to make 2 more (4-inch) circles.
Spoon 1 rounded tablespoonful of beef mixture onto half of each pastry circle. Moisten edges with water; fold pastry over filling, pressing edges with a fork to seal. Place pies on ungreased baking sheets.
Bake at 400° for 15 minutes or until lightly browned. Serve warm with chutney, if desired.
Note: Meat mixture may be frozen up to 3 months. Thaw in refrigerator and prepare pies as directed.