Preheat oven to 350°F (175°C).

In a large bowl, combine the oats, baking powder, and brown sugar.

In a separate bowl, whisk together the egg whites, skim milk, applesauce, vanilla extract, cinnamon, and melted margarine.

Pour the wet ingredients into the dry ingredients and mix well.

Let the mixture stand for at least 5 minutes.

Gently stir in the blueberries.

Grease an 11x7 inch baking pan with butter or non-stick spray.

Pour the blueberry oat mixture into the prepared pan.

Spread the mixture evenly in the pan using a spoon or clean hands.

Sprinkle the chopped pecans evenly over the top.

Bake for 30-35 minutes, or until the top is browned and the bake springs back slightly when touched.

Let cool slightly before serving.