In a large bowl, toss blueberries with other berry ingredients, coating fully. Place four 8 oz or 10 oz ramekins onto a baking sheet, and distribute the blueberries and any remaining juice evenly into the ramekins.
Using the same bowl, mix the topping ingredients together until fully incorporated. Top each ramekin with an even amount of the topping mixture, spreading to cover the berries.
Bake the crisps at 350 degrees, for 30-35 minutes, until berries are bubbling and topping is light brown.