Spread 1 can (20 to 22 ounces) fruit pie filling in 8-inch square dish. In small bowl, mix together 1 box (1 layer size, 9 ounces) yellow cake mix, 1/4 cup melted butter, 1/2 cup coarsely chopped nuts and 1 teaspoon cinnamon. Sprinkle evenly over fruit, or arrange topping in 3 rows across top so fruit is visible. Microwave at high (10) for 11 to 13 minutes. Makes 6 servings.