Overnight oats offer a convenient and healthy breakfast solution for busy weekdays. Prepared by soaking raw oats in milk overnight, they create a creamy, dense texture superior to regular cooked oatmeal. The speaker finds them energizing and satisfying, lasting for five days in the fridge, making meal prepping easy. Their versatility allows for various toppings like fruits, nuts, seeds, nut butters, and even chocolate or coconut, adding flavor and customization.