Smoothies are an easy way to get children to eat fruit and dairy, and each child can create her own personalized drink. Set out milk, yogurt, ice, juice and fruit like berries, bananas and peaches (use fresh or frozen fruit). Set up a blender, and let children experiment with combining ingredients. Forbid the preschoolers from placing their hands inside the blender even when it's off. Cover the blender, and pulse it several times until the drink is smooth.
Cooked spaghetti makes an easy background for vegetable faces. Cook whole-wheat spaghetti, and place a scoop of the slightly cooled pasta on to each child's plate. Set up bowls of sliced vegetables like tomatoes, olives, peppers, carrots and mushrooms, using only vegetables you know the preschoolers like. Let each child use the vegetables to create facial features on top of his spaghetti faces. Once the faces are done, pour some tomato or cheese sauce on to the faces. Children can stir the ingredients together before eating.
Instant pudding takes only a few minutes to make and can provide children with a full serving of dairy. Buy instant low-fat vanilla or chocolate pudding. Let children help measure the milk and mix the milk and pudding mix together. While the pudding chills in the refrigerator, let the children help you wash berries while you chop up berries and bananas. Put graham crackers into plastic bags, and let the preschoolers pound the crackers into crumbs. When the pudding is thick, let each child mix the toppings into her own bowl.
Children are never too young to start learning about nutrition. Teach children to choose healthier packaged foods. Take the preschoolers to the grocery store to compare packages, or pull food packages out of your own cupboards. Compare similar foods like boxes of cereal or cans of soup. Point out a few categories to look at like calories, fat, sugar and sodium. Challenge children to put the packages in order from healthiest to least healthiest, using options like pita chips and chocolate chip cookies.