Preheat oven to 350?. Mix brownie mix, applesauce, two of the egg whites and water. Pour into 13x9-inch baking pan sprayed with cooking spray. Mix cream cheese, sugar, flour and remaining egg white until well blended. Spoon over brownie batter. Cut through batter with knife several times for marble effect. Bake 28 to 30 minutes or until toothpick inserted in center comes out with fudgy crumbs attached. Cool in pan on wire rack. Cut into 24 pieces. Per Serving (excluding unknown items): 136 Calories; 4g Fat (22.8% calories from fat); 3g Protein; 24g Carbohydrate; trace Dietary Fiber; 1mg Cholesterol; 128mg Sodium. Exchanges: 0 Grain(Starch); 0 Lean Meat; 0 Fruit; 1/2 Fat; 1 1/2 Other Carbohydrates.