Preheat and prepare the pans. Adjust oven rack to middle position and heat oven to 450oF. Spray a 9x9 baking dish.
Make the filling. Toss berries, sugar and cinnamon, and flour in a large mixing bowl and pour into baking dish.
Make topping. In the same mixing bowl, combine flour, oats, sugar, cinnamon, brown sugar, and salt in bowl. Stir in butter until mixture is thoroughly moistened and crumbly. Sprinkle over the berry mixture.
Bake the crisp. Bake in preheated oven for 15 minutes. Cool slightly before enjoying. Eat with whipped cream,