At the day Seudah, that family was served the small Parve cholent, or so they thought. They saw meat in the cholent.
The host was beside himself.
They discovered that the waiters helped themselves to a breakfast of cholent. They realized that the small cholent was almost finished, so they scooped out from the large meat cholent to refill the parve cholent.
All under the watchful eyes of the Lakewood kashrus's Mashgiach, who went to daven with a minyan and came back at 10:30 AM and had "bossur she'nisalem.