flyusa.jetpalate.com goes in every prelim email, so your flight team has one catering experience link to use, every time. The member opens it, enters their trip number, and sees their flight's menu.
The one thing to decide is how those three fields reach us.
We use three fields, matched by the trip number:
01
Departure airport
so we show the restaurants that can serve that flight
02
Date and time
so we can time the pickup and match it to restaurant hours