Peach Cobbler Overnight Oatmeal is awesome. This is a terrific breakfast idea for holidays or company since it can be made overnight in the slow cooker. Steel-cut oats are so creamy and delicious when slow-cooked. If you enjoy Peach Cobbler, you’ll love the Peach Cobbler-inspired flavor of these fantastic oats. This recipe is hearty, filling and satisfying, but also vegan and gluten free.