Wow, here's a great idea for a snack or even for breakfast. A dietitian recently made me aware of Greek yogurt. Higher in protein and lower in calories, Greek yogurt has a slightly thicker consistency than regular yogurt. Mix in some fresh or frozen fruit and/or granola and you've got a great snack or breakfast.
Frozen fruit is another great idea that I learned last week. When blueberries and strawberries are expensive in the winter(and let's be honest, they are not as good as they are in the summer), you can always pick up some packages of frozen berries. They are great on cereal, in yogurt or like a mini popsicle right out of the freezer!