Build a Potluck Sign Up Sheet in Google Sheets

You are hosting a 30-person Thanksgiving potluck and you do not want to end up with four green bean casseroles and no dessert. A shared spreadsheet is the free, obvious tool most people reach for first. It works, up to a point. Here is how to build one that actually does the job, and where it starts to cost you time you do not have.

Set up the columns in Google Sheets

Open a blank Google Sheet and title it something people will recognize, like Thanksgiving Potluck - Nov 27. Then build a header row that forces the details you need out of every guest. Skip the vague single-column list. You want structure.

Name so you know who committed to what.
Dish with the actual food they are bringing.
Category using a fixed set: appetizer, main, side, dessert, drinks. Set up a dropdown here (Data > Data validation > Dropdown) so people cannot invent their own categories.
Serves how many so you can see if you have enough food for 30.
Dietary notes for nuts, gluten, dairy, and vegetarian labels.

Now add a small planning block off to the side. List each category and how many dishes you want in it: 5 appetizers, 4 mains, 6 sides, 5 desserts, 2 drink runs. This is your target. Guests will not follow it on their own, so you will be steering them manually. More on that in a second.

Set sharing to "Anyone with the link can edit." That is the only way people can add themselves without you approving each one. It is also the setting that causes most of the trouble.

Where the spreadsheet starts fighting you

A Google Sheet has no idea what a potluck is. It is a grid. Every guardrail you want has to be enforced by you, by hand, and that is where a 30-person potluck turns into an evening of cleanup.

Nothing stops overbooking. Your plan says 4 mains. A spreadsheet will happily accept the ninth turkey. You are the capacity limit, checking the sheet and messaging people to switch to a side dish. A dedicated form lets you set a maximum number of slots per option so mains lock automatically once they fill, and overflow rolls to a waitlist. The grid cannot do that.

People break the layout. Someone types over a neighbor's row. Someone deletes a column. Someone pastes a paragraph into the Dish cell and pushes everything sideways. With open edit access on a shared file, one careless guest can scramble the whole thing, and you may not notice until the day before.

No reminders. The sheet will not tell anyone the potluck is Thursday. You send those texts yourself, and you send them again to the three people who forgot to fill anything in.

Phone editing is rough. Half your guests open the link on a phone. Editing a multi-column spreadsheet on a small screen is fiddly, and that friction means fewer people bother to sign up. The whole point was to make it easy.

Duplicates and blanks. People add themselves twice, leave the category blank, or write "dessert?" with a question mark. You clean it up. Every time.

None of this makes Google Sheets useless. For a six-person dinner among friends, a shared sheet is genuinely fine. The trouble scales with the guest count and with how much you care about balance.

When a dedicated potluck form is the better call

Once you are past a dozen people, or you actually need a full spread of dishes, a purpose-built form removes the manual steps. You can spin up a potluck signup with slots for each dish category, set a cap on how many of each, and share one link. When appetizers fill up, that option locks and guests see what is still needed. No policing required.

A few concrete differences from the spreadsheet approach:

Guests never make an account and never log in. They open the link, pick a slot, and they are done in seconds. That works the same on a phone, since the forms are mobile-friendly signups in any browser with no app to download.
You get automatic email updates when someone signs up, plus email reminders before the event, so you are not the human notification system.
Respondents cannot edit each other's entries. There is no shared grid to scramble.
The tool is a free signup tool with no ads, unlimited forms, and unlimited responses. The free plan shows up to 30 responses per form on the site, which covers most potlucks outright, and everything you collect is always stored.

If you would rather not build the categories from scratch, describe your event in plain language and let the AI-powered signup forms generate the structure. Type "Thanksgiving potluck for 30, need 4 mains, 6 sides, 5 desserts, 2 drink runs" and it lays out the slots for you. Edit anything afterward, because forms stay editable after they go live.

A quick way to decide

Use the spreadsheet if the group is small, everyone is comfortable in Google Sheets, and you do not care much about hitting exact category targets. It is free and instant, and you already know how it works.

Switch to a form when you need caps that enforce themselves, reminders you do not have to send, clean data you do not have to fix, and a link that works painlessly on a phone. If you are the type who reruns the same event every season, you can save your setup as a reusable template and skip the rebuild next year. The same approach carries over to a church potluck signup, a holiday party signup, or a team snacks rotation.

Start with the free plan, cap your mains at four, and share the link. You will get your full spread and skip the casserole pileup.