Heat oven 350°F.
Spray 9-inch round baking pan with nonstick cooking spray.
To make topping: In medium bowl, combine oats, flour, brown sugar, pecans, cinnamon and salt.
Using pastry blender, cut butter into mixture until blended.
To make cake: In small bowl, combine flour, baking powder, salt and baking soda.
In large bowl, mix cream cheese, butter and sugar. Beat mixture until smooth.
Add egg and egg yolk, milk and vanilla extract. Beat mixture until smooth.
Combine flour mixture with cream cheese mixture. Spread mixture in pan. Sprinkle topping over batter.
Bake 35-40 minutes. Serve warm with ice cream or dust with powdered sugar.
