Quiznos and Subway are two major restaurant chains that offer party sub sandwiches. Both offer extensive catering menus on their websites.
Quiznos offers several catering packages for events, including options that serve from 10 to 50 people. Quiznos' The Birthday Party catering package includes a large sub tray, salad bowl and pasta and is designed to serve 10 to 20 people. The Family Reunion catering package from Quiznos include a large sub tray, large flatbread tray, two pasta salads, a side garden salad and three dessert trays and served 40 to 50 people. Quiznos party sub is a six-foot-long sub that comes with a choice of meats and serves 20 people. Its sub trays include a mix of classic or chicken recipes and comes with plates and napkins. The chain's pasta sides serve 10 people and come with plates, utensils and napkins.
Subway offers giant subs in two sizes: 3-foot and 6-foot. The 3-foot sub serves nine to 15 people, while the 6-foot sub serves 18 to 25 people. Subway also offers sandwich platters in three pre-made options or a customizable option. Each sandwich platter serves five to nine people and contains 15 portions. Options include Subway's Classic Combo Platter, Flavor Craver Platter and Subway Fresh Fit Platter, as of 2015.