1.Heat oil in large saucepan, add onion and bacon, cook, stirring, until onion softens. Add beef, cook, stirring, until browned. Add flour, cook, stirring, 2 minutes. Gradually stir in stock, paste and sauce, bring to the boil, stirring. Reduce heat, simmer, uncovered, about 10 minutes or until thickened, season to taste. Cool.
2.Preheat oven to 200°C (180°C fan forced). Oil six ¾-cup (180ml) pie dishes.
3.Cut six 15cm (6 inch) rounds and six 12cm (5 inch) rounds from pastry, press large rounds into base and sides of pie dishes. Prick bases with fork. Divide beef mixture between pie cases, brush edges with a little egg, top with small pastry rounds, pressing edges together firmly. Brush pies with egg, cut small slits in pastry tops.