Preheat oven to 375 ˚F (190 ˚C).
In 9- x 13-inch (22 x 33 cm) baking dish, arrange halved fruit cut-side up. Drizzle with canola oil and sprinkle with sugar.
Place in oven and roast for 15 minutes, until starting to soften.
Meanwhile, in bowl (or bowl of food processor), combine topping ingredients and pulse or blend with fork until well blended and crumbly. Sprinkle evenly over fruit or use spoon to fill hollow middle of each fruit half.
Bake for additional 15 to 20 minutes, until topping is golden and fruit is tender and bubbly around edges. Serve warm with yogurt, ice cream or whipped cream.