Preheat oven to 350°.
To prepare crisp, combine the first 6 ingredients in a large bowl; toss well. Spoon into a 13 x 9-inch baking dish coated with cooking spray.
To prepare topping, lightly spoon flour into a dry measuring cup; level with a knife. Combine flour, oats, 1/3 cup sugar, and 1/2 teaspoon cinnamon in a large bowl. Cut in butter with a pastry blender or 2 knives until mixture resembles coarse meal. Sprinkle flour mixture over the pear mixture. Bake at 350° for 1 hour or until topping is golden and fruit is tender. Serve warm.