Healthier, more creative children's menus are no longer just a trend — they're becoming a must-have. The National Restaurant Association placed both "healthful kids' meals" and "children's nutrition" in its top 10 culinary trends for 2014. Parents want dining options that are flavorful, organic, original and kid-approved. Creating menu items that kids will like and parents will purchase is a tall order, so here are some ways to get started.