Do I need parchment paper to roast vegetables?

Online Answer
You never want to roast your vegetables directly on your sheet tray. Aluminum from the tray can leach into your food. Parchment paper makes for easy cleanup. I like to use the If You Care brand of parchment paper because it's compostable and unbleached/chemical-free.
Related Questions 📌
Your baked goods won't stick to it, and when you're done you can throw out the parchment instead of washing the pan. If you have no parchment paper, you can still bakeyou'll just have to be a bit more creative..
Just think of this simple rule: "Sweet treat, parchment sheet. ... Parchment is preferable for baked goods and delicate dishes, while foil is best for cooking that involves high heat (broiling and grilling).
The term parchment is a general term for an animal skin which has been prepared for writing or printing. Parchment has been made for centuries, and is usually calf, goat, or sheep skin. The term vellum from the French veau refers to a parchment made from calf skin.
You do not need to put any grease or oil on the parchment paper. Cookies will slide off the paper if you pick them up with a spatula and a cake will come out of the pan easily. Parchment paper can be used for several batches of the same recipe being baked on the same cookie/baking sheet in a few batches.
Parchment Paper and/or Foil. Not a zero waste option, but a plastic-free option nonetheless. Both can be used to wrap items individually, or they can be used together.