Sears recommends using an ice-cube tray, muffin tin, or a plate with different compartments. As your toddler makes his rounds through the house, he can stop, sit down, nibble a bit, and when he's done, continue on his way. The same approach can work for older kids. Keep raisins, crackers, chunks of cheese, sliced fruit and veggies in the fridge and let your kids grab a bite whenever they want one. Don't worry about them ruining their meals.
Most kids are hungry every two or three hours.
It's also important to keep serving size in mind. You've probably noticed that the old Basic Four Food Groups we were taught as kids has been replaced with the new Food Guide Pyramid. While this is a great resource for knowing what kinds of foods your kids need, it doesn't tell you how much they need. It may not sound like much food to you, but it will fill the tummy of your toddler. The Good Stuff One of the biggest complaints parents have is that their kids prefer pre-packaged junk to anything resembling a healthy option.