My DH and I ended up splitting the bacon and egg sandwich and getting the kids cupcakes. Honestly, there was too much food for the 4 of us with the full bowl of melon that came with the sandwich and the pastry tray. We did also tend to eat lunch earlier in the day, 11:30, to head off the kids getting 'hangry'.
Without knowing what your group likes to eat, I would suggest ordering the meat and cheese board and a drink or two (one comes with the meal). Cupcakes would be cheaper, but I crash if I eat only sugar in the morning.
The PPO ADR was awesome, especially on a Saturday morning when we did it. My DH and DS were exiting PP before the line was full of RD people.