Mix fruit, granulated sugar and cornstarch in a greased 9 x 13 pan. Spread evenly in pan.
Mix topping ingredients together in a bowl using a fork to combine until crumbly. Sprinkle topping over fruit and bake about 45 minutes or until bubbling and golden brown.
Can serve warm with vanilla ice cream or whipped cream or serve a room temp.
Recipe by Chateau Elma at https://www.chateauelma.com/fruit-and-berry-crisp