Hello to everyoone
WWger is the restuaratnt roder tutorial through google spreadsgeet
Until 2019 App Inventor had a tutorial called Pizza Party that used a Fusion Table (not a Google Spreadsheet). Google stopped supporting Fusion Table in December 2019 so the example Project no longer is usable..
Is this what you are looking for Pizza Party with Fusion Tables for App Inventor 2 ?
Perhaps you could use TIm's CloudDB Pizza Party remix - TimAI2 that replicates the original tutorial using a CloudDB.