Click the Share button on the Meal Train page. Then, use the Add button at the bottom.
Pro Tip 1: You can only invite from a past event in which you were an organizer or the recipient. If you would like to use another organizer's invitation list, have them add you as a secondary organizer to the Meal Train page you would like to use.
Pro Tip 2: Inviting from within MealTrain.com using Meal Train Add is a great way to add people to your participant list.