Preheat oven to 350°.
Spray a deep dish pie pan with cooking spray.
Add all the fruit to the pie pan.
Mix together the brown sugar & corn starch and sprinkle over the top of the fruit. Gently mix the fruit. Add the little cubes of butter to the top of the fruit mixture.
In a mixing bowl combine the flour, sugar, salt, baking powder cinnamon. Stir to combine.
Make a well in the flour and add the egg and oil. Stir to combine.
Crumble the dough over the top of the fruit.
Bake at 350 for about 45 minutes.
My husband took one bite and said "OMG - you need to sell this!"
Use any combination of fruit, enough to fill your baking dish.
If using all peaches up the cornstarch to about 3 tablespoons.
This goes together very easily. Enjoy!