1.Preheat oven to 240°C (220°C fan-forced). Squeeze sausage meat from casings; discard casings. Heat oil in a frying pan over moderately high heat. Add sausage mince; cook, stirring to break up lumps, for 5 minutes or until browned. Add chilli powder and beans; cook, stirring until heated.
2.Place bread halves, cut-side up, on a large baking tray. Spread tomato paste evenly over bread. Top with mince mixture, then cheese. Bake for 15 minutes or until golden.
3.Top pide with sour cream, salsa and onion. Serve with salad.
Try chicken, lamb or pork sausages instead of beef. For a Moroccan twist, use Moroccan spice mix instead of Mexican chilli powder, and chickpeas instead of kidney beans.