Healthy blueberry Bircher muesli is the perfect option for breakfast, especially if you're trying to be good. Prepare the night before and leave to soak in the fridge. This easy to make breakfast is topped with fresh blueberries, which count towards your 5-a-day. This recipe serves 1 person and takes 5 mins to prepare, plus soaking overnight. Blueberries are packed with vitamins and minerals and are one of the best superfoods.