A sheet tray is a flat and usually rectangular baking tray made of metal or oven-safe materials. It is used for baking and cooking foods such as cookies, cakes, vegetables, and meats in the oven. Full definition
Let cool for 5 minutes on sheet tray before transferring to cooling rack to cool completely. (kimscravings.com)
Fill a piping bag fitted with a 1/2 inch round tip and pipe the cookies on parchment lined sheet trays; leaving at least an inch space between cookies. (suziesweettooth.com)
How lucky, then, that it's actually served on big sheet trays in this former auto body shop. (bonappetit.com)