1. Toss apple with 1 teaspoon brown sugar and 1/4 teaspoon cinnamon in a microwave-safe bowl.
2. Pour 1 tablespoon water on top and microwave on high until apple is soft, about 2 minutes.
3. Mix 1 tablespoon rolled oats with 1 teaspoon brown sugar, 1 teaspoon unsalted butter, and 1 teaspoon chopped walnuts and place mixture on top of cooked apples.
4. Microwave for an additional 2 minutes, or until butter and oat mixture begins to incorporate with apples.

Calories: 166.1
Protein: 1.405 g
Carbohydrate: 30.2 g
Dietary Fiber: 4.221 g
Total Sugars: 21.4 g
Total Fat: 5.688 g
Saturated Fat: 2.628 g