Arrange peach slice in a 8" glass square dish. Sprinkle with sugar and cinnamon. Microwave three minutes. In a mixing bowl, combine cake mix and oil. Mix well. Crumble over peaches in dish. Microwave twelve minutes on high, turning 1/4 turn every two minutes. Cool to room temperature before serving.
Per serving: 357 Calories; 7g Fat (17% calories from fat); 2g Protein; 73g Carbohydrate; 0mg Cholesterol; 378mg Sodium