Preheat oven to 400 degrees Fahrenheit. Prick the potatoes all over with a fork and bake until tender. Depending on the size, this will take about 45 minutes - 1 hour. Decrease oven temperature to 350 degrees Fahrenheit.
Once the potatoes are cooked and cooled enough to handle, remove them from their skins and place in a large bowl. Mash with salt, pepper, 2 tbsp. maple syrup, 3 tbsp. melted butter, and milk. Mash until smooth and set aside.
In a small bowl, combine oats, pecans, flour, brown sugar, cinnamon, and melted butter.
Spread the sweet potatoes in a baking dish and top with pecan-oat topping.
Bake for 30 minutes until the pecan-oat topping begins to brown.
Enjoy!
Recipe by For the Love of Gourmet at https://fortheloveofgourmet.com/sweet-potato-pecan-casserole/