Berry Crumble

5 cups fresh or frozen berries, such as raspberries, blackberries, blueberries, and sliced strawberries
1 large apple, cored and chopped
2 tablespoons whole wheat flour
2 tablespoons sugar substitute
1/2 teaspoon cinnamon
Topping:
1 cup large-flake oats
1/2 cup chopped pecans or walnuts
1/4 cup brown sugar substitute
1/4 cup non-hydrogenated soft margerine, melted
1 teaspoon cinnamon

1. In 8-inch square baking dish, combine berries and apple. In bowl, combine flour, sugar and cinnamon. Sprinkle over fruit and toss gently.
2. Topping: In bowl, combine ingredients. Sprinkle over fruit mixture. Bake in 180C oven for about 30 minutes or until fruit is tender and top is golden.