Preheat oven to 350ºF. Grease an 8x8-inch baking dish with butter or non-stick spray.
In a medium bowl, whisk together oil, sugar, eggs, and milk.
In a small bowl combine oats, baking powder, and salt.
Fold the dry ingredients into the wet ingredients. If adding fruit, fold in the mixture.
Pour in the prepared baking dish. Either cover and refrigerate overnight or go ahead and bake. Bake for 35-45 minutes or until set and golden brown.
Meanwhile, for the cream, in a small saucepan over low heat whisk together milk, cinnamon, nutmeg, vanilla extract, and sugar.
Dish up individual servings of the oatmeal in a small bowls and pour cream on top.