Mixed Berry Overnight Oatmeal is heavenly. This fantastic overnight oatmeal recipe includes strawberries, blueberries, raspberries and honey-glazed pecans. It’s aa delightful breakfast entree for weekend, company or holiday breakfasts or brunches. It’s so easy since all the ingredients are tossed in the slow cooker. We break it down into individual containers and then microwave during the week for a quick, hearty and satisfying breakfast. Vegan and gluten free.