Preheat oven to 375 degrees F. Spray two 3 1/2″ ramekins with baking spray.
Stir all filling ingredients together in a small bowl. Divide filling between the dishes.
In the same bowl, add topping ingredients. Squeeze butter into oat mixture with your fingers until it is well blended and crumbly. Sprinkle the crisp topping over the fruit in each bowl, pressing it down to hold it in place.
Place ramekins on a baking sheet lined with foil. (This is important because there will definitely be some bubbling over!) Bake in preheated oven for 30 minutes or until topping is brown and filling is bubbly.
Allow to cool slightly before serving alone, with cream, or with ice cream!