Sweet potatoes are a traditional fall food. They're plentiful now, and inexpensive as well.
Eating a sweet potato keeps you feeling full for hours on end. There are 180 calories in a cupful. And they are nutritional superstars, containing vitamins C and B6, potassium, large amounts of beta-carotene that translate into immune system health, lutein for your eyes, and a big 7 grams of fiber for your digestive system.