Preheat the oven to 350 degrees. Toss apples, blueberries & flour in a bowl, then put into a 9" pie plate.
Put oats, nuts, flour, butter & seasoning into a food processor & blitz until the butter is pea-sized. If you do not have a processor, use your hands to make a crumbly topping...This would be a good one to get the kids involved with!
Spread the topping evenly over the fruit. Bake for 45 minutes. Let it rest for about 5 minutes & serve. As you know, ice cream, plain Greek yogurt or fresh whipped cream is always a dream for serving.