Combine the oats, milk, maple syrup, and a pinch of salt in a saucepan. Bring to a gentle simmer over medium heat, stirring frequently with a wooden spoon.
Reduce the heat to low and continue cooking, stirring often, until the oats are soft and the mixture begins to thicken, about 5-7 minutes. You'll notice it develop a creamy, textured consistency.
Stir in most of the chopped toasted pecans into the oatmeal, folding until evenly incorporated. This adds crunch and rich flavor throughout.
Remove the saucepan from heat and let the oatmeal sit for a minute to relax and cool slightly, making it easier to serve.
Spoon the oatmeal into bowls, then sprinkle the remaining toasted pecans on top for added crunch and presentation.
Enjoy your warm, creamy pecan pie oatmeal with an extra drizzle of maple syrup if desired.