"A healthier version of fruit cobbler where the fruit is emphasized by reducing the sugar. I made this with the wild raspberries from my backyard, and it was delicious! If you want to really taste the fruit in your cobbler, this is a good one to try!"
Mix apples, raspberries, white sugar, lemon juice, 1 tablespoon flour, and 1 teaspoon cinnamon together in a bowl; pour into a 9x13-inch baking dish.
Mix 1 cup flour, oats, brown sugar, butter, whole wheat flour, flax seeds, milk, yogurt, baking powder, 1 teaspoon cinnamon, salt, and baking soda together in a separate bowl until topping is crumbly. Spread topping over apple mixture.
Bake in the preheated oven until topping is golden brown, 20 to 30 minutes.