In a large bowl, stir together pears, granulated sugar, brown sugar, vanilla extract, salt, cinnamon, ginger, allspice, nutmeg, lemon juice, and cornstarch until evenly coated. Pour into the prepared baking dish and bake for 15 minutes.
6 cups sliced ripe pears, 3 tablespoons granulated sugar, 2 tablespoons light brown sugar, 1 teaspoon vanilla extract, 0.25 teaspoon salt, 0.5 teaspoon ground cinnamon, 0.25 teaspoon ground ginger, 0.125 teaspoon ground allspice, 0.125 teaspoon ground nutmeg, 1 tablespoon lemon juice, 2 teaspoons cornstarch