Cheerios, Goldfish (they make whole grain goldfish!), cheese cubes or string cheese, yogurt. I also just started buying cottage cheese and one of those big bags of frozen berries. The berries take 20 minutes to de-thaw if you just leave some in a bowl on the counter. I mix the berries in the cottage cheese. Guess you can do the same and mix the berries with a plain yogurt - greek is healthiest. You can use the berries for a healthy snack for yourself as well - just add them to a bowl of cereal or vanilla frozen yogurt! Of course, we also do the gerbers' cheese puffs and all the pricey stuff that the kiddos love in the baby aisle.