1. Preheat your oven to 180c/350F/Gas 4. Place the rhubarb in a medium-size pie or glass dish. Add the pear slices, orange juice and zest, and toss together to combine. Sprinkle over the sweetener and cinnamon, and cook in the oven for 10-12 minutes.
2. Meanwhile, make the topping by placing the low-fat spread, sweetener and flour in a bowl. and rubbing together with your fingertips until the mixture resembles breadcrumbs.
3. Remove the fruit from the oven. Sprinkle over the topping and cook for a further 10-12 minutes or until lightly golden. Allow to cool slightly before serving - its tastes great with a dollop of low-fat, ready-made custard (1 Syn per 2 level tbsp), served warm or cold.