Preheat oven to 350 F.
Place apples and pears in an 8 by 12- inch rectangular baking dish.
Sprinkle with granulated sugar, cinnamon and cardamon.
Add orange zest and orange juice. Mix with a spoon to combine.
In a large bowl, add flour, oats, brown sugar, and butter.
Mix with an electric mixer until butter is still visible, but in small pieces.
Cover fruit with oatmeal mix, evenly.
Bake for about 40-50 minutes or until golden brown.