These little jars filled with fiber, whole grains, and protein are a necessary solution to your busy weekday mornings. The best part is, they're extremely customizable. Feel free to experiment with any of these additions: A spoonful of plain Greek yogurt or natural peanut butter, a handful of nuts (we prefer walnuts), some raisins or other dried fruit, or a tablespoon of chia seeds or ground flax meal. Not a fan of cold oats? Simply place the glass jar in the microwave (without the metal lid!) and nuke for 30 seconds to 1 minute.