re: Favorite place to pick up sandwich trays in Lafayette?

My only other suggestion is Johnson's Boucaniere.

For that few people, you don't have to have a "tray" specifically. You could get a certain number of poboys, halved or ask them to be cut in 3 pieces or whatever and wrapped individually like they'd serve an individual sandwich. Then, if you want to bring them with you hot, load them into an ice chest which will keep them warm until you arrive at your destination. You could bring a tray with you and place them on the tray yourself pretty easily. That's just if you have some hot sandwiches, though. Cold won't matter.