Moochers at the potluck

DEAR ABBY: We often have potlucks at my place of work. This year, I have been helping organize them. It is glaringly apparent that some people bring substantial dishes to share while others bring something paltry or nothing at all. How do I word an email to an entire staff that would not seem overbearing or aggressive but states, “If you don’t bring, you don’t eat”?

— HUNGRY IN KENTUCKY

https://www.syracuse.com/advice/2024/06/dear-abby-dealing-with-moochers-at-the-potluck.html