Walmart Deli handles many advance-order trays, Marketside appears on much of the prepared-food selection, and Walmart Pickup or Walmart Delivery controls how the order reaches the buyer. How Much Do Walmart Party Platters Cost? That separates a Walmart tray from full-service catering. An out-of-stock label does not establish that every Walmart deli has stopped selling the product. Buyers comparing that charge with membership delivery can review current Walmart delivery expenses.