Easy Cherry Cobbler

Preheat oven to 375°F. Coat an 8-inch-square baking pan or dish with cooking spray. Spread cherries in the prepared pan; sprinkle with lemon juice. Combine sugar, all-purpose flour, whole-wheat flour and egg in a medium bowl; stir until the mixture resembles coarse meal. Sprinkle the topping evenly over the cherries. Drizzle butter over the topping. Bake until browned and bubbly, 35 to 45 minutes. Let stand for 10 minutes before serving.