For your first meal of the day, try to stick to 250-300 calories. While eggs on their own may not be enough to hold you over, you can combine them with extra protein in the form of nuts, and a side of berries or banana slices. If you opt for the berries, your breakfast will total 233 calories and if you choose the banana, your breakfast will total 301 calories. Not craving eggs? You can make yourself a comforting, fiber-rich bowl of oats. Top the oatmeal with sliced almonds and blueberries for 302 calories and you'll stay full until lunchtime.