What is a flat, rectangular metal pan used in an oven called?

I would've said Baking Tray

We always called it a "cookie sheet," although we use it for a lot more than that.

Arohanui, when my aunt baked a cake on a sheet pan, she called it a sheet cake

nthabi, I think it is spelt differently in the USA to Britain, its definitely pronounced differently as I thought for years that it was a different metal bit like tomata and tomarto both spelt tomato

nthabi, Yes it is....

the option one that named Mangal in India we coll Mangal Tuesday

Arohanui, no

MiniMe, that's right ✅

I thought it was spelt and pronounced ALUMINIUM🤦