Preheat oven to 350°. In a large bowl, combine oats, brown sugar, baking powder, salt and cinnamon. In another bowl, whisk eggs, milk and butter. Stir into oat mixture until blended.

Spoon into a greased 9-in. square baking pan. Bake 40-45 minutes or until set. Serve warm with milk. Yield: 9 servings.