If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

Which meal information was missing?
What made collecting food difficult?
What arrangement would help?

Author notes / illustrative keys where applicable:
1. Use this answer to locate the part of the experience that needs explanation. The example issue to investigate is: attendees cannot identify labeled meal options.
2. Collection difficulties reveal practical obstacles such as unclear queues, locations or serving arrangements. Improve the relevant instructions after checking actual provision; do not request health details or infer nutritional adequacy from feedback.
3. Turn the requested improvement into a testable next step. One illustrative action is: improve food labeling and collection routes.