Disney allows you to bring your own food into the parks. Save money by making sandwiches for lunch, find a shady spot and people-watch/rest. Or, bring snacks and drinks to have during the day, and then experience your favorite attractions while everyone else is eating lunch. Also, the meal portions are large at Disney. Consider sharing.
*Bonus tip: The Disney Dining Plan doesn’t always save you money. Consider your family’s eating habits before purchasing!