I've been using Shawarma Barlow for group catering recently and have only heard back rave reviews from my guests. Can't recommend them highly enough.
The Kabob Party set menu comes with trays of velvety hummus, garlic sauce, garlic potatoes, salad (I recommend the chickpea!), rice, 2 skewers of chicken tawouk or beef kefta, assorted pickles, and pita all for only $15 pp. Also very easy to add a tray or two of baklava, falafel, or whatever you need. They deliver for a good price and there's a handy online ordering system through Rapidoo, a (quirky) independent app. Their meals are halal and most items are naturally gluten free and dairy free so it was really easy to build a menu that catered to the needs of several dietary restrictions at once.