A simple, new twist on an old favorite can add variety, and that might be enough to get a child to taste rather than toss. For instance, make the usual turkey and cheese sandwich and use a cookie cutter to make a whimsical or enticing shape. If you find yourself in a bind for time, you can even throw leftovers from dinner into a container. Macaroni and cheese with low-fat turkey dogs may not be the king's meal, but if little Johnny will eat it, it's better than nothing. Make sure you pack the lunch in a way that will keep the food at the proper temperature.
Research shows children can get most of the same vitamins and minerals from fruit.
Experiment at home with different fruits, even kiwi and mango, to find out what your child likes. Take them to the grocery store where they can pick out fruits themselves after holding and smelling them. This will increase your awareness of their preferences, as well as providing an educational experience for them. If a green apple meets with a sour face, try a red. The color change might make a difference.