As experts pay closer attention to how junk food affects children's behavior, it's become increasingly clear that a well-nourished child is also a happy one. The great news is that it's easy to make changes that will improve kids' brain function, concentration, and outlook on life. Here are quick, delicious, and nutritious meals that will help grow a more contented, better behaved child, from an energy-boosting breakfast of blueberry and apple muffins to chicken dippers, a brown roll, and muesli munchies for the lunchbox. Try sweet potato wedges for an afternoon snack. Serve a smiley-face pizza for dinner, followed by banana and coconut ice cream. Children will love the food and parents will love the difference it makes in their kids.